434 ARETHUSE.E. 
Hab. in Guayand Britannicd ; in pratis lacus Tapakome littorali Arabisie, 
nec non secus flumina Demerara et Berbice, Schomburgk. (hab. s. sp.) 
Four or five feet high according to Mr. Schomburgk. I have only been 
able to examine a flowerbud of this very distinct species, and from its 
crushed state I am unable to ascertain the form of the parts. The flowers 
when dry are 7 lines long, and appear to have been pink. 
CCXLVII. VANILLA. 
Vanilla. Plumier. Swartz. nov. act. ups. 6. p. 66. t. 5. f. 1. Endlicher. gen. no. 1614. 
Myrobroma. Salisb. parad. 82. 
Pelianthium apice tantüm patens, cum ovario articulatum, spits calicu- 
latum. Sepala et petala subzequalia, conformia, basi libera. Labellum 
cum columnà connatum, integrum, concavum, medio barbatum. Co- 
lumna elongata, aptera. Anthera terminalis, opercularis. Pollinia 2, 
biloba, granulosa. Fructus siliquiformis, carnosus, a latere dehiscens, 
placentis 3-6 seminiferis. Semina globosa, testà arct® adnatà, ecru- 
staceà, fragili. ———— Herbe scandentes, Americe et Asie tropice 
incole. Caules teretes. Folia cum caule articulata, carnosa, basi sub- 
cordata. Flores carnosi. Fructus in quibusdam aromaticus, oleo essen- 
tiali et acidi benzoici crystallis scatens. 
l. VaNiLLA aromatica. Swartz. in act. ups. 6. p. 66. R. Brown, in Hort. 
Kew. v. 920. 
V. foliis ovato-oblongis acuminatis sessilibus, perianthii campanulati la- 
ciniis 5 undulatis acuminatis apice revolutis, labello acuminato basi 
cucullato linea medià nudà elevatà (capsulis cylindraceis longissimis.) 
Vanilla flore viridi et albo, fructu nigricante. Plum, ic. 183, t. 188. 
Epidendrum Vanilla. Linn. sp. pl. 1347. 
Hab. in America meridionali, in sylvis subhumidis montium, Swartz. ; in 
Brazilia, prope Rio Janeiro, Gardner 632, in prov. Min. Ger. Martius. 
(hab. s. sp.) 
The only specimens of this plant which I have met with are from Brazil, 
and they perfectly agree with Plumier's figure on which the species 18 
founded. I do not however find that the leaves are more ribbed than in 
other species, and it does not appear that any of the Brazilian Vanillas form 
the substance known in trade. A kind of Vanilla is said to be preserved in 
sugar in Brazil and used in the country, or occasionally sent to Lisbon, but it 
is not fit to dry for the purpose of commerce. Can this be Schiede's V. Pom- 
pona, no. 11? It is certainly to be suspected that V. aromatica has nothing 
to do with the fruits of commerce. 
2. VANILLA claviculata. Swartz. in Schrad. Journ. 1799. 2. fig. 1. fi. ind. 
occ. 1515. : 
V. foliis lanceolatis acutis concavis recurvatis rigidis, floribus aggregatis, 
sepalis carnosis ovato-lanceolatis obtusis concavis, petalis ovato-lanceo- 
latis obtusis postice carinatis, labelli limbo ovato dilatato deflexo undulato- 
crispo ungue sulco hirsuto-ciliato exarato; ciliis ramentaceis multi- 
fidis, fructu oblongo insipido. 
Li 
