76 BOTANY OF TEE VOYAGE OF H.M.S. HEUALB. 
This tree is about forty feet high. Its branches are divergent in whorls, not quite so regular as in 
most Conifercs, but sufficiently marked to produce a peculiar aspect. Its range is confined to the American 
continent, extending from Panama southwards. I have seen specimens from Surinam (Hostmann), Guiana 
(Hancock, Schomburgk), Santarem (Spruce), Goyaz (Gardner), and Minas Geraes (Claussen). 
MENI SPERM ACE^. 
[Audore J. Miers) 
15. CissAMPELos Pareira, Linn., De Cand. Prodr. vol. i. p. 100; Syst. vol. i. p. 553. Near 
the city of Panamaj in shady places. 
The specimens are not distinguishable from several recognized ones from the West Indian Islands. 
The leaves are cordate and deltoidly orbicular, obtuse at the summit, 2f inches diameter, and inserted at a' 
distance of three lines from the margin, on a petiole If to 2 inches in length ; they are almost glabrous 
above, cinereously pubescent below. Several racemes, about f inch long, grow out of each axil ; they are 
spreadingly branched upon very deUcate peduncles and pedicels, the flowers being very minute. 
16. CissAMPELos microcarpa, De Cand.^ Syst. vol. i. p. 534; Prodr. vol. i. p. 101. In sunny 
exposed situations about Tole, Veraguas. 
This accords with some specimens from the Havana. The younger leaves are quite palate, as stated 
by De Candolle, and as they grow older they become somewhat peltate ; they are deltoidly orbicular, obtuse 
at the summit, truncated or slightly sinuated at the base, finally pubescent above, pale and covered ^ith a 
fine yellowish down below, 2 inches across both ways, with a pubescent petiole of l.\ inches. The female 
inflorescence, as usual in this genus, is in the form of lengthened bracteated spikes, which in reality are 
nascent branches, the lengths of which vary according to their relative ages : the young leaves are therefore 
bracteiform, bearing in each axil a fascicle of pediccUated flowers. 
17. Batscuia conferta, Thunb., Nov. Act. Tips. vol. v. p. 120, t. 3. fig. 3. — Trichoa spicaia, 
Pers., Ench. vol. ii. p. 634. — Dioica, scandens, ramulis teretibus pubescentibus demura glabratis; 
Masc. foliis altemis ellipticis utrinque subacntis opacis glabris nitidiuscnlis supcmc convexis circa 
l)asin 3-plinerviis in ncr\is profuude sulcatis et pubescentibus, venis transvcrsis immersis subtus 
pallidioribuSj nervis hinc valde prominentibus subpnbesccntibus, margine cartilagineo revoluto, 
petiole subtenui tereti apice paululo incrassato glabro, racemis compositis axillariljus solitariis graci- 
libus subspicatis folio sublongioribus pubescentibus, floribus parvis pedunculo ramis pcdicellisqiie 
bractea minima munitis; F(em. foliis oppositis basi acutioribns apice repente brcvitcr attennatis 
planis supeme glaberrimis longe supra basin 5-pliner\iis in costam sulcatis nerns venisque trans\'ersis 
anastomosante reticulatis prominulis utrinque in areolis elevato-punctatis subtus pallidioribus, venis 
nervisquc (prsesertim in primariis et costa) valde prominentibus istis in axillis a basi remotis flavido- 
baxbatis margine subrevoluto, petiolo breviore et crassiore tereti, racemis subcompositis utrinque 
axillaribus et solitariis pubescentibus petiolo vix longioribus. Bay of Ardita, Darien. 
Here are two specimens, one of which sufficiently well accords with the drawing and description of 
Tliunberg above referred to, and the other ofiera such dissimilar features, that, examined in the lierbarium, 
it would be set down as distinct ; but as both were found in complete juxtaposition, they must be consi- 
dered as the male and female plants of the same species. The leaves of the male plaut are convex on the 
upper surface, 2| to 4 inches long, 1^ to 2 inches broad, on a petiole G lines in length ; the slender raceme 
is from 2-^- to 4^ inches long, the alternate short branches, 1 or 2 lines long, are furnished at base with a 
