144 = ON SOUTH-AMERICAN APOCYNACEA. 
crenulatim paullo quinqui fido, ovarium obtegens. Ovarium ovatum, 2-loculare, loculis utrinque plurio- 
vulatis; stylus filiformis ; clavuncula breviter oblonga, 5-glandulosa, imo indusio peltiformi munita; 
stigmata 2, parva, obtusa, terminalia. Fructus capsularis, fusiformi-cylindricus, superne angustior, 
apice breviter nodosus, utrinque sulcatus; pericarpium crasso-coriaceum, 2-loculare, per dissepi- 
mentum bilamellare ad sulcos septicide dehiscens, marginibus ad axem sutura longitudinali intro- 
flexis et placentiferis. Semina plurima, oblonga, compressa, superne suspensa, coma «equilonga 
coronata; testa dorso corrugata, ventre planata et raphe longitudinali vasis spiralibus repleta 
munita; embryo anatropus, in albumen tenue viride immersus; cotyledones 2, oblong, mem- 
branacee; radicula his triplo brevior, tenuiter teres, supera. 
Frutices Americe meridionalis scandentes, plerumque dense villosi, rarius glabri ; ramorum axille 
dilatate, remotiuscule, linea transversa notate, et utroque latere pluristipellate ; folia oblonga vel 
elliptica, opposita, integra, nervosa, tomentosa vel glabra, cum petiolis linea transversa nexis: cyma 
unilateralis; pedunculus ex involucello stipellarum ortus, apice brevissime ramosus, ramis densifloris, 
corymbam capitatam simulantibus ; flores subparvi, subpedicellati, bracteolati : fructus villosus, peri- 
carpio crasse coriaceo. 
l. PrestToNIa TOMENTOSA, R. Br. Mem. Wern. Soc. i. 69; A. DC. l. c. p. 429; Müll. Fl. Bras. xxvi. 
p. 163 (in parte). In Brasilia: v. s. in herb. Mus. Brit. Rio de Janeiro (Solander). 
This typical specimen, collected by Solander in 1768, has scandent branches, covered 
with yellow tomentum, with axils 6 in. apart; the opposite oblong leaves, oval at the 
base and there scarcely cordate, diminish gradually towards the summit, and are ter- 
minated by a narrow very acute acumen, are fuscous green above, sparsely pilose, with 
short rigid hairs seated upon minute scabrid glandules, are suleate along the immersed 
nerves and transverse veins, clothed beneath with extremely dense, soft, woolly, yellow 
tomentum which conceals the under surface, 41—51 in. long, 13-23 in. broad, on thick, 
woolly petioles 2 lines long ; inflorescence lateral, very tomentous, on a peduncle 3 lines 
long, shortly divided, the branchlets bearing many flowers aggregated into a globular 
head 1 in. in diameter; pedicels 2 lines long, villous, bracteoles linear, acute, villous, 
2 lines long, 1 line broad; sepals acutely oblong, densely villous on both sides, 6 lines 
long, 24 lines broad, each with an opposite, inner, externally villous, somewhat acute 
scale 1j line long, 3-denticulate at the apex; tube of corolla pilose outside, 8 lines 
long, appendages as in the generic character; the segments, glabrous within, are 5 lines 
long; stamens included, shortly excurrent; filaments retrorsely hispid behind; anthers 
subeoherent ; disk urceolate, with a margin of 5 broad emarginated teeth, enclosing a 
pilose 2-celled ovary; capsule as in the generic character, of a greyish colour, retrorsely 
pilose, 23 in. long, 9 lines broad, reduced above to 13 line, and terminated by a globular 
knob 2 lines broad ; seeds oblong, fusiform, compressed, rugous on the dorsal face, with 
a white longitudinal raphe on the ventral side, 5 lines long, 1 line broad, with an apical 
coma of erect reddish hairs, in 2 series, 6 lines long. 
It may be greatly doubted whether the specimens of Pohl from the province of Goyaz, 
and of Claussen from Minas Geraés, as quoted by Müller, are identical with Solander's 
plant. De Candolle, who refers to Claussen's specimen, was dubious on the subject, 
though he had not seen the typical plant. Müller's description, without a knowledge of 
the type, is sufficiently at variance with it, as its leaves are of a yellowish golden green, 
