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Timehri: the journal of the Royal agricultural and commercial society of British Guiana online

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128. 5,750 feet.

162. Upper slope.

Crepinella, E. Marchal, nov. gen.— Flores hermaphrodite
Calycis margo brevis obsolete 4-dentatus. Petala 4-valvata.
Stamina tot quot petala, subdico epigyno explanato superne
in stylum sulcatum abeunte inserta, filamentis brevibus et
antheris ovatis. Ovarium i-loculare, i-ovulatum, ovulo
pendulo. Fruftus ignotus. Frutex (?) glaber. Folia digitata.
Flores in umbellas com posit as terminales digesti. Bra&eae
parvae squamiformes. Pedicelli sub flore continui.

Notwithstanding the absence of fruit the genus Crepi-
nella is very different from other Araliaceae with 1 -celled,
i-ovuled ovary differing from Eremopanax, Baiilon, Cupho-
carpus, Dene & Naud, and Mastixia, Blume, in its digitate
leaves and umbellate tetramerous flowers. Dedicated to
Mons. Crepin, Director of the Botanic Gardens, Brussels.



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Notes on Plants at Roraima. 195

162. Crepinella gracilis, E. Marchal. no v. sp. Foliis 5-natis
petioli sulcato basi abrupte dilatato, foliolis breviter petiolu-
latis, ovato-elliptices, apice obtusis vel marginatis, basi
acutiusculis, margine integerrimis sinu revolutis, pergama-
ceis, costa infra prominente, umbellulis longiuscule pedun-
culatis, 8-12 floris, pedunculo gracili profunde sulcato superne
incrassato ; floribus minutis pedicello basi bra&eolato 4-poll
brevioribus, calycis tubo obconico, 8 sulcato, corolla hem is.
phaerica acutiuscula sulcata, petalis ellipticis, apice leviter
incrassatis incurvis, nervia tenui extus impressa notatis*
stylo gracili, latitudinem disci vix aequante fru&u. — Ro-
raima : E. F. im Thurn.

Rami supremi graciles. Petiolus communis circ. 5 cm. Ion-
gus. Petioluli 6-10 mill longi. Foliola 4-5 cm. longa atque
3 cm. lata. Pedicelli 5-7 mill, longi.



128. Sciadophyllum coriaceum, E. Marchal. nov. sp.
— Inflorescentiis foliisque subtus tomento adpresso
subferrugineo demum hinc inde deterso vestitis, foliis
digitatis, 5-7-natis, foliolis ellipticis, apice rotundatis
v. saepius leviter emarginatis, basi acutiusculis margine
integerrimis anguste revolutis crassiusculis, coriaceis,
supra denudatis, reticulo nervorum densiusculo infra
valde prominente, floribus in umbellas duas composi-
tas superpositasque digestis, umbellulis numerosis, 9.12
floris, pedunculo compresso elongato superne dilatato, radiis
filiformibus basi bra&eolatis, calycis limbo minute 5 dentato,
corolla hemisphaerica acutiuscula, petalis apice cohaerentibus
demum a basi secedentibus staminum filamentis brevibus,
stylis in unum sulcatum 5 fidum latitudinem disci epigyni
vix aequantem concretis fruftum. Roraima : E. F. im Thurn,
Allied to Sciadophyllum japurense Mart, et Zuce, but
differing in leaves inflorescence and style. Arbor. Rami
supremi 2 cm. crassi, petiolus communis 20 cm. longi.
Petioli 24 cm. longi. Foliola 11-13 cm. longa atque 4.5
cm. lata. Pedicelli 5-8 mill, longi.

220. Viburnum glabratum, H.B.K. base of cliff.

134. Coccocypselum canescens W. var House.

6. Kotchubaea (Synisvon Schomburgkianum Baill) Aroie Creek.
BB 2



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196 TlMEHRU



69. Declieuxia chiococcoides, H.B.K. House.

29. Sipanea pratensis, Aubl Arapoo R.

135. Cephaelis axillaris, ? Sw. House : Upper slope.

83. Peychotria inundata, Bth. ? 3»5oo feet.

145. „ crassa, Bth. ? House.

232. „ „ Upper slope.

185. Psychotria sp. ( * Schomburgk 1018 B, and Appun, 1103).
Upper slope.
163, 320. Psychotria im Thurniana, Oliv. sp. nov.— Glaberrima ; ra-
mulis gracilibus internodiis reftis subteretibus foliis sub-ses-
silibus anguste vel lineari-lanceolatis acuminatis basi obtu-
sissimis subcordatisve, costa prominula, nervis secundariis
utrinque circ. 10-15 incurvis prominulis nervo marginal!
attingentibus cum venulis intermediis, stipulis basi connatis
deltoideo-subulatis brevibus, cymis terminalibus peduncula-
tis 9.15 floris laxiusculis bra&eis obsoletis, calycis limbo
4-dentato, dentibus deltoideis corollae tubo cylindrico limbo
2-plo longiore. Roraima. Upper Slope and Ledge, 7,000
feet. E. F. im Thurn. Folia tenuiter coriacea flavescentia
if -2^ 'poll, longa, i-f polL lata. Flores 2-2$ lin. longa ;
corollae limbus 2-2$ lim. diam., lobis ovatis obtusis tubo
intus piloso. Ovarium biloculare.
191, 214. Psychotria sp. (Imperfeft). Upper Slope and Our Path.
291. „ ? sp. Path to Upper Savannah.

Psychotria concinna, Oliv. sp. nov.— Glaberrima, ramulis
gracilibus atropurpureis, foliis petiolatis parvis coriaceis
ovalibus acutis v. acutiusculis supra costa subprominula
nervis lateralibus obsoletis, subtus costa prominente nervis
secundariis utroque latere 7.10 prominulis patentim curva-
tis nervo marginali attingentibus, stipulis liberis (utrinque
geminatis) e basi crassiuscula ere&is subulatis rigidiusculis,
floribus in cymis pauci-flons parvis breviter pedunculatis
terminalibus dispositis, pedicellis brevissimis, calycis lobis
minutis ovatis, corollae tubo refto gracili glabro intus
medium versus pilosulo superne leviter dilatato, lobis brevi"
bus ovatis. Roraima : Ledge 6,500 feet and summit r
E. F. im Thurn. No. missing. Folia 7-12 lin longa, J-i poll
lata : petiolus i-ii lin. longa Cymae 5-8 florae. Corolla
6-7 lin. longa (lobi 1 lin.)



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Notes on Plants at Roraima. i^

66. Palicourea riparia? Bth. forma angustifolia.

85. „ rigida, Kth.

90. Relbunium (Schombk 646/984 B.) 5400 ft.
23. Eupatorium amygdalinum, D. C. Arapoo R.

Eupatorium sp. ? not identified. No label. ■

95. Eupatorium conjzoides, V. var. 5>40O ft.

91. Mikania pannosa, Baker 5400 ft.
16. Pectis elongata, H. B. K. Wai-ireng R.

241, 325. Bacoharis Vitis-Idesea, Oliv. sp. nov.— Ramulis ultimis pu-
berulis foliis crebris tenuiter coriaceis oblanceolatis obtusis
apice 1 -3-5-mucronatis, in petiolum basi cuneatim angust-
atis glabris, capitulis companulato-hemisphaericis 15-20-
floris in corymbis terminalibus saepius sessilibus dispositis,
involucri bracteis pauciseriatis, interioribus (in cap ? ) scario-
sis anguste lineari-oblongis deciduis, pappo albido. Rorai-
ma, Ledge, 7,300 ft. and summit. E. F. im Thurn.

Folia £-1 poll, longa, 3-4^ lin. lata, capitula J-£ poll,
diam. ; bracteis exterioribus ovatis v. ovato-lanceolatis
plusminus scariosis margine apicem versus saepe denticu-
latis v. minuto-fimbriatis (in invol 6* ut videtur obtusion-
bus) achsenia lineam longa angulata glabrata; pappus
achaenio longior, setis circ. 30 minute barbellatis.

328. Baccharis aff. B. cassiniaefoliae, D. C. an var?
63. Achyrocline flaccida D. C. 4,000 ft.

250. Gnaphalium spicatum Lam. 5,400 ft.

86. Verbesina guianensis, Baker 5400 ft.

27. Galea ternifolia, Oliv. sp. nov.— Suffrutex scaber, foliis
ternatis ellipticis v. ovato- v. obovato-lanceolatis breviter
petiolatis late acutatis utrinque apicem versus 1-3-dentatis
supra scabris subtus prsecipue in costa nervisque setulosis
capitulis circ. 20-floris homogamis pedunculatis ad apices
ramulorum umbellatim dispositis, involucri squamis exte-
rioribus^ herbaceis ovatis v. ovato-oblongis capitula brevio-
ribus, squamis interioribus rigidiusculis late oblongis ob-
tusis striatis, paleis concavis obtusis superne leviter dilatatis,
ovariis parce setulosis paleis pappi acuminato-subulatis
brevioribus. Arapoo River. E. F. im Thurn. Folia rigida
J-ii poll, longa, 5-8 lin. lata ; petiolus ad 1 lin. longus.
Umbellae 3-5 cephalae, pedunculis hispidulis capitulis saepe



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198 TlMEHRI.



paullo longioribus. Capitula late campanulata i poll
longa atque lata.
247. Erechthites hieraciifolia, Raf . 5400 ft.

10. Stifftia condensata, Baker. Nr. Waetipoo M.

314, 346. Centropogon laevigatas, A.D.C. var ? Ledge 5400 ft.
77. „ surinamensis. Presl. ? 3»5oo ft.

56. Psammisia ? sp. (inadequate) 5400 ft.

49. Psammisia, with glabrous smooth purple brown stem, ovate-
oblong shortly apiculate quintupli nerved leaves of 4 to 6
ins. and contra&ed umbelliform racemes of flowers 1 in. in
length on pedicels of £-} in. This is probably Schom-
burgk's No. 670/974 of which corollas are wanting in our
example. Whether it be Klotzsch's P. guyanensis I cannot
say. Roraima upper slope. E. F. im Thurn. Under
the same numoer is apparently another Psammisia, in early
bud, with more broadly elliptical leaves and acute calyx
segments.
109. Notopora Schomburgkii Hook. f. S400 ft.

243. Sophoclesia aff. S. subscandenti (ovarioglabro) Ledge 7,300 ft.
329, 333. Vaccinium an V. floribundum, H.B.K. ? (V. polystachyum ?

Bth.) Top and Ledge.
326, 365. Vaccinium an V. floribundum, H.B.K. var. ? Top.

308. Ledotnamnus guyanensis, Meissner in Mart. Fl. Bras
vii, 172 var minor; foliis minoribus imbricatis acutis
ciliolatis, floribus sessilibus v. subsessilibus, filamentis an-
thera 3-5 poll longioribus. Roraima : Upper part of ledge
and summit. E. F. im Thurn,

Possibly a distinct species, but as our Schomburgk
specimens are more advanced and scarcely in a compara-
ble state, better left as above for the present. The leaves
are only about 2\ lines long (in the type 4 lines), minutely
setulose ciliolate, Flowers 1 to \\ in. in diameter, of vivid
crimson. In our type the flowers are on pedicels, of % to
1 in., but these may perhaps elongate after flowering.
Befaria guianensis, Kl. Label missing.
310. Befaria aff. B. resinosae, Mutis (sepalis obtusioribus) 2 forms
Top.

With No. 333 Pernettya nr. P. parvifolia Bth. and allies
(in fruit.)



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Notes on Plants at Roraima. 199

103. Gaultheria cordifolia, H.B.K. 5>400 ft.

332. „ aff. G. vestitae. Bth. pedicellis longioribus. Top.

137. Lucuma rigida, Mart, and Eichl. (nr. House.) 5,400 ft.

108. Grammadenia lineata Bth. 5 ,400 ft.

36. Ditassa taxifolia, Dene. Arapoo R.

155. Vincetoxicum (Orthosia) hirtellum, OH v. sp. nov.—
Volubile, caule gracili pi lis brevibus subpatentibus
hirto, foliis ovali-oblongis rigidiuscule apiculatis, margini-
bus revolutis, supra hirtellis in sicco rugulosis, subtus
prsecipue in costa pilis patentibus hirtis, cymis sessilibus v.
brevissime pedunculatis pauci v. plurifloris folio breviori-
bus, floribus subsessilibus v. pedicello calyce vix longiore,
corolla; lobus angustus intus hirsutus, coronse segmentis 5
basi in annulo brevissimo continuo insertis lineari-lanceo-
latis gynostegium fere aequantibus, stigmate obtuso. Ro-
raima: E. F. im Thurn.

Folia f-} poll longa ; petiolis -& poll longus v. brevior
Flores i poll, longi. Very much resembles in general
facies Ditassa pauciflora.

147. Nephradenia linearis, Bth ? ?

1 13. Curtia (Schuebleria tenuifolia Don) 5)400 ft.

47. Lisianthus amaenus Miq. 5*400 fj.

306. Lisianthus im Thurnianus, OH v. sp. nov.— Gracilis gla-
berrimus, caule inferne folioso teretiusculo internodiis folio
brevioribus utrinque lineis elevatis duabus notatis, foliis
coriaceis obovatis ellipticisve obtusis v. obtusciusculis mar-
gine anguste revolutis triplinervus, pedunculo elongato^
cymis 3-2-floris, floribus longe pedunculatis calyce (J-$
poll, longo) 5-fido lobis ovato lanceolatis acutiusculis,
corollse (2-poll,> tubo leviter dilatato limbi lobis oblonge-
ovatis acutis, filamentis elongatis gracilibus glabris inclusis,
anther is oblongo, ellipsoideis inappendiculatis. Roraima :
Ledge and Summit, E. F. im Thurn. Caulis i-pedalis
erectus v. basi decumbens. Folia \-% poll, longa basi in
petiolum angustata, i-£ poll. lata. Pedunculus commu-
nis 3-6 poll, longus ; bracteae superiores lineares v. ovales :
Discus hypogynus o.

In our specimens the limb of the corolla looks as though
it might remain straight or even slightly incurved in flower.



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200 TlMEHRI.

1 88. Lissianthus aff. L. macrantho sed calycis lobis acuminatis
corollae tubum aequantibus. Upper Slope.
3, Heliotropium aff. H. fruticoso conf. H. strictissimum =

Schombk 185 & 283/576 Konkarmo.

24. Solanum an S. Convolvulus P Sendn. (Inadequate). Arapoo R.

210. Melasma P spathaceum, OH v. sp. nov.— Scabrum foliis sub.
oppositis v. inferioribus alternis brevissime petiolatis ovato
ellipticis basi rotundatis v. leviter cordatis dentatis supra
scabris, floribus pedunculatis in axillis superioribus pe-
dunculis folio subaequilongis apice bibracteolatis, brac-
teolis linearibus, v. oblanceolatis basi angustatis, calyce
alabastro acuminato florifero antice fisso spathaceo, corolla
exserta leviter incurva tubo, superne leviter dilatato limbi
brevis lobis subaequalibus lobo, postico truncato emarginato,
lateralibus obtusissimis, antico obovato rotundato bifido.
Roraima : Upper Slope, E. F. im Thurn. Ramula retror-
sum hispiduli. Folia (exsicc. nigrescentia) }-i£ poll, longa,
4-7 lin. lata. Calyx 5 nervius, alabastro, oblongo-ellip-
soideus apice acuminatus, parce praecipue in nervis, sea-
bridus, 10-12 lin. longus. Corolla i\ poll, longa, Stamina
inclusa didynama; filamenta glabra; antherae sagittatae
glabrae dorsifixae loculis aequalibus basi apiculatis. Ovarium
glabrum.

I have had too imperfelt material to determine finally if
this plant should be left in Melasma or regarded as the type
of a new genus. There are no ripe fruits and I should like
to be more confident about the form of the corolla lobes and
their aestivation.



129. Beyrichia ocymoides, Cham. circ 5,400 ft

43. Utricularia Humboldtii, Schombk. 5400 ft.

187. Utricularia (S. Orchidioides) Campbellianum, Oliv. sp.
nov. scapo gracili (i£-2$ pollicari) uniflora saepius squamis
linearibus v. lineari-lanceolatis remotis bracteiformibus in-
structo foliis tenuibus obovatis obtusis basi in petiolum an-
gustatis, bracteis ternis ovatis v, oblongo, ellipticis pedi-
cello brevioribus v. aequilongis, calycis lobis ovato-cordatis
obtusis, corollae labio superiore brevi calycem vix superante,
labio inferiore amplo rotundato integro, calcari gracili



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Notes on Flaws at Roraima. aoi

cylinctrico acutato incurvo labium corollae sequante. Ro-
raima: Schomburgk; Upper slope, E, F. im Tkurn.

Folia cum petiola i poll, longa, lamina £-£ poll. lata.
Calyx lobis 4-5 lin. longis latisque. Corolla labio inferiore
1 poll. lato.

293. Utricalaria aff. montanae, Jacq. (U. uniflorae Rl & P. ) Top.
78. „ an tenuifolia, Benj. 3,500 ft.

287. Gesneracea? In fruit only. Path to upper Savannah.
64. Tabebuia RoraimSB, Oliv. sp. nov.— Ramulis ultimis pube-
rulo vel scabrido-lepidotis, foliis trifoliolatis foliolis oblongo-
ellipticis obtusis saepe mucronulatis lateralibus breviter
petiolulatis, supra glabrata sutbus cano-lepidotis nervis
conspicuis depresso areolatis, racemis terminalrbus pauci v.
plurifloris, bracteis lineari-spathulatis scaebrulis pedicellis
erectis bibra&eolatis ; calyce infundibuliforme lepidoto-
puberulo lobis breviter ovato rotundatis, corrollae tubo
calyce triplo longiore infundibuliformi limbi lobis patulis
late rotundatis. Roraima : 5,000 ft. E. F. im Thurn.

Folia petiolata; petiolus ( in ramulis floriferis) i-ij poll,
longus ; foliola 2-3} poll, longa, 10-16 lin. lata ; petiolulus
centr. £-£ poll, longus. Flores 3^-4 poll, longi, limbo 2^-3
poll. lato.



14. Aphelandra pulcherrima? Kth. v. Artetragona Nees. Ireng R
81. Justicia sp. = Appun No. 1,387 (in part); Kookenaam Valley.
52. Lippia Schomburgkiana, Schr.

1. Stachytarpheta mutabilis V. Konkarmo.

38. Hyptis arborea, Bth. Arapoo R.

249, 98. Hyptis lantanaefolia Poit. 5400 ft.

in. Coccoloba Schomburgkii, Meiss 5400 ft.

139. Peperomia not identified ; material scarcely adequate. 5400 ft.

140. n an P. tenella Dietr. ? 5,400 ft.
196. „ » i, ? Upper Slope.

224. „ reflexa, Dietr. „ „

219, 236. Hedyosmum brasiliense, Mt. ? „ „

323. Phoradendron RoraimsB, Oliv., sp. nov.— Flavescens, ra-
mulis teretibus infra nodos interdum compressis crassitie
pennae corvinae parce hirtellis foliis lineari-oblongis v.
anguste ovalibus acutiusculis, floribus raonoecis, spicis
CC



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202 TlMEHRI.



i-articulatis 5-7 floris, baccis ellipsoideis laevibus? carnosis.
Roraima : Ledge and summit, E. F. im Thurn,

Folia carnosula moderate coriacea parce pilosula v. gla-
brata basi in petiolum brevem angustata, 5.9 lin. longa, 1-2
lin. lata: internodia £-1 poll, longa. Spicse axillares
solitaries apiculatae 1-2 lin. longae; vagina bracteoli leviter
bidentata v. subtruncata, lateraliter compressa.

Mr. im Thurn's No. 276 (Roraima, path to tipper Savan-
nah) may be a glabrate form of this plant with rather
broader obtuse obscurely mucronulate leaves.

142. Phyllanthus pycnophyllus, Muell. Arg. 5400 ft.

235. Croton aff. C. surinamensi, Muell Arg. Forest belt.

76.Sponiamicrantha, Sw. 3,500ft.

58. Burmannia bicolor, Mart. 4,000 ft.

121. Dictyostegia orobanchoides, Miers. Upper slope.

280. Pleurothallis stenopetala, Lindley, Upper slope Roraima,

183. Stelis grandiflora, Lindley, „ „ „

285. Stelis tristyla, Lindley. „ . „ „
127. Lepanthes (inadequate) 5400 ft. (Our House)
275. Octomeria? sp. Upper slope

289. Microstylis umbellalata? Sw.

279. Masdevallea picturata, Reichenbach fil. Upper slope

286. >, brevis, Reichenbach fil. „ „

57. Bulbophyllum Geraense, Reichenbach fil. S400 ft. (Our House)

290. Elleanthus furfuraceus, Reich, fil. Upper slope
274. Epidendrum tigrinum, Lindley. Upper slope

13. „ Schomburgkii, Lindley. Ireng River

42. „ elongatum, Jacquin, 5400 ft. (Our House)

296. Epidendrum alsum, Ridley, n. sp. ($ Euepidendra plani-
culata.)- Caulis validus, } uncia crassus ramosus ;
folia coriacea brevia ovata obtusa, i| ad J uncia longa f
lata. Vaginae rugosae vix uncia longae. Panicula abrupte
deflexa, ramis duobus flexuosis 1 ad 2$ uncia longis.
Flores parvi carinosi, 8 in ramo, dissiti. Bracteae ovatae
cucullatae subobtusae, Sepala lanceolata carinata petala
angusta lanceolata quam sepala dimidio breviora, et paullo
tenuiora, Labellum cymbiforme ovatum cordatum carno-
sum. Columna brevis. Top of Roraima. The affinity of
this plant is with E. frigidum, Lind.



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Notes on Plants at Roraima. 203

299. Epidendrum im Thurnii, Ridley, n. sp.— Caulis gracilis

teres par urn ramosus ultra runcialis. Folia angusta lineari-
lanceolata coriacea carinata, uncia longa, J lata, vaginis
rugosis. Racemi, 2 vel 3, deflexi vix uncia longi sex flori.
Flores. parvi tenues. Bractese ovatse, pedicelli f aequantes.
Pedicelli J unciales. Sepala lanceolata oblonga obtusa
curva, circiter i uncia longa. Petala linearia angusta
uninervia. Labellum ovatum cordatum cymbiforme, basl
angustatum. Columna gracilis paullo recurva. Anthera
pileata subcornica obtusa capsula fusiformis. Top of Ro-
raima.
322. Epidendrum monf!fgena, Ridley, n. sp.— Caulis teres graci-
lis, ultra semipedalis. Folia elliptica lanceolata mucroniata
carinata, uncia longa f lata ; vaginae } uncialis rugosae*
Racemi deflexi multiflori, haud ramosi circiter 3 uncias
longi. Flores parvi tenues. Bractese ovatse subacutse
patentes, Sepala lanceolata ovata falcata ^ uncia longa.
Petala angustiora lanceolata. Labellum cymbiforme lata
cordatum, carnosum. Ledge and top,
51. Epidendrum durum Lindley. Our House

300. Epidendrum violascens, Ridley, n. sp.— Caulis semipedalis

gracilis foliis distichis lectus, Folia brevia brevia lanceolata
crassiuscula recurva, £ uncia longa; vaginis superiorum
violaceis. Panicula erecta gracilis 5 uncialis, ramis paucis
tenuibus. Flores pauci perparvi. Bracteae lanceolatae
breves recur vae. Sepalum posticum lanceolatum obtusum
trinervium, lateralia basi connata et ad basin labellum
adnata lanceolata obliqua apicibus excurvis, trinervia.
Petala linearia angusta uninervia, Labellum rotundatum
subreniforme, marginibus serrulatiss costae tres elevatae
versus apices attenuate, columna crassiniscula. Top of
Roraima.
304. Epidendrum, sp. 71500 Ledge.

80. Cattleya Lawrenceana. Reichenbach fil. C. pumila, Schom-
burgk, "Reise Brit. Guian." p. i,o68non. Hooker. Roraima.

55. Cyrtopodium parviflorum, Lindley. Roraima 4,000 ft.

50. Zygopetalum Burkei, Reichenbach fil. Our House

61. Koellensteinia Kellneriana, Reichenbach fil Roraima 4,009
ft

CC 2.



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204 TlMBHRI.



360. Agaaiftia alba, Ridley, n. sp.— Pseudobulbus nullus. Folia
2-volata lanceolata acuta, basi attenuata sub-coriacea, costis
tribus elevatis in dorso, 7 uncias longa, | lata, scapus
lateralis erectus, 13 uncias longus, vaginis 2-3 apice obtusis
araplexis, remotis paullo ampliatis. Racemus laxus, 10-
florus. Flores, mediocres, uncia longa et lata. Bracteae
Pedicellis multo breviores ovatae acutae inferiores vagi-
nantes. Pedicelli £ uncia longi. Sepala ovata lanceolata
subacuta. Petala subsimilia obtusiora et angustiora. Label-
lum integrum, mentum plicatum, lamina rhomboides obtusa
lata. Columna brevis crassiuscula, alis magnis obtusis
falcatulis apicibus curvis. Anthera subconica. Stigma
semilunare. Kookenaam River 3,000 ft.

This plant is most nearly allied to A. cyanea, Benth ( War-
rea cyanea, Lindl.). There is a figure of what seems to be
the same species in the drawings made by Schomburgk
preserved in the British Museum. It was obtained at
Takootoo, and is represented with white flowers, with the
base of the lip and the mentum yellow, a few faint purple
stains towards the apex of the lip and purple streaks on the
face of the column. The fruit deflexed, oblong in shape.
It is found also in the region of the Kaieteur Fall.
1 14. Oncidium nigratum, Lindley 5,400 ft. Our House.
12. Oncidium OrthOStates, Ridley, n. sp.— (Plurituberculata
Homoeantha expansa). Pseudo bulbus oblongus 2 uncias
longus. Folium lanceolatum oblongum 3 uncias longum
uncia latum. Scapus elatus validulus rigidus ultra bipe-
dalis. Bra&eae lanceolata? deflexae breves t uncia.
Flores mediocres, iis O. coesii aequantes. Pedicelli i
uncia longi. Sepala lanceolata subacuta, petala subsimilia
viridia brunneo-m aculata (ex sicco). Labelli lobi late-
rales spathulati obtusi, medius basi angustatus rotundatus
reniformis emarginatus, cuspide minuta. Calli carina lamel*
las duas breves gerens. Columna brevis lobis obtusis
magnis dolabriformibus tenuibus. Pedicellus pollincorum
elongatus ligulatus discus oblongus quadratus margine
exteriore croceus. Ireng River No. 12, im Thurn; 23
Savannah, W. H. Campbell, sp. indeterminanda, Upper
Slope Roraima.



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Notes on Plants at Roraima. 205

148. Catasetum cristatum? Monachanthus form. Our House.
115. Pogonia parviflora, Reichenbach fil. 5,400 ft. Our House*
19. Sobralia stenophylla, Lindley. Spelinicola. Arapoo River.
273. Sobralia, sp. indeterminable. Upper Slope, Roraima.
342. Spiranthag bifida, Ridley, n. sp. Tubera elongata cla-
vata.

Folia ovata petiolata acuta tenuia parva, lamina semiuncia
longa i uncia lata, petiolus vix semiuncialis. Caul is debilis
parce pubescens, ferme 10 uncialis, vagi n is circiter 9 laxis
lanceolatis acuminatis dissitis, f uncia longis. Racemus
densus spiralis, uncia longus. Bracteae flores superantes,
lanceolata? acuminata?. Sepala, petala et labellum subsimilia,
lanceolata angusta obtusa, marginibus involutis apice bifida,
minute papillosa. Petala quam sepala angustiora. Columna
brevis, anthera erecta obtuse acuta, ovarium minute pube-
scens. Our House, Roraima.
131. Stenoptera viscosa Reichenbach fil. Our House, 5400 ft.
173. Stenoptera adnata, Ridley, n. sp.— Tubera plura lanata
elongata. Folia tenuia membranacea lanceolata acuta 3
uncias longa. £ lata. Caulis validulus 17 uncialis supra
pubescens. Vaginis pluribus dissitis lanceolatis acuminatis
usque ad basin fissis, longissima i£ uncialis. Racemus
multiflorus densus pubescens. Flores parvi reversi. Brac-
teae lanceolata? acuta? 4 unciales floribus aequantes. Ova-
rium breve crassiusculum pubescens ; Galea (sepalum pos-
ticum petala adnata) ovata cucullata obtusa, marginibus
fimbriatis. Sepala lateralia oblonga ovata acuta. Label-
lum ovatum lanceolatum, lobis lateralibus tenuibus erectis
vixdistinctis, medio lingui-formi, carnoso, obtuso, supra
canaliculato, basi subtus pubescente. Columna elongata
gracilis apice clavata, parte inferiore pubescente. Upper
slope.
9. Pelexia aphylla, Ridley, n. sp.— Tubera desunt, folia radi-
cal i a nulla, caulina lanceolata acuminata 6 dissita, supe-
riora latiora, Caulis 8 uncialis pubescens proesertim versus
basin. Flores pauci mediocres, albi, sepalum posticum ad
petala adnatum, galeam efformans, lanceolatam acumina-
tam cucullatam, petala quam sepalum breviora. Sepala
lateralia lanceola linearia porrecta marginibus involutis,



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Online LibraryRoyal agricultural and commercial society of BritiTimehri: the journal of the Royal agricultural and commercial society of British Guiana → online text (page 15 of 25)