244 ON SOUTH-AMERICAN APOCYNACEX. 
within; segments oblong, glabrous, the inner median nerve puberulous; stamens ex- 
serted, fixed in the middle of the tube; disk of 5 distinct free lobes, concealing 2 pilose 
ovaries. 
8. ForsTERONIA REFRACTA, Müll. Fl. Bras. xxvi. p. 97. In Brasilia, prov. centralibus: v. v. el sicc. in 
herb. meo (n. 4026, in flore et fructu) montibus Organensibus. 
A scandent shrubby species, with glabrous, fuscous, trichotomous patent branches 
and slender branchlets, all verruculous with crowded raised yellow lenticels, the axils 
3 in. apart; leaves elliptic, obtuse or subacute at the base, contracted at the summit 
into a subobtuse acumen, flaccidly chartaceous, glabrous, opake green above, with 6 
pairs of fine diverging nerves and reticulated veins, paler beneath, with prominulent 
yellow nerves, 11—21 in. long, 3-1 in. broad, on slender glabrous petioles 2 lines long; 
racemose panieles at the end of the young branchlets, about as long as the leaves, 
covered with yellow tomentum; peduncle terete, lenticellate, bearing several opposite 
patent or refracted branchlets at intervals of 4 in., and about 6 lines long, each with 
very short secondary branchlets bearing several approximate almost sessile flowers; 
petals obtusely ovate, 4 line long; corolla 2 lines long, its tube } line long; segments 
linear-oblong, puberulous outside, with rigid villous hairs inside, expanded and re- 
flexed at the apex; stamens upon short filaments inserted within the tube; anthers as 
long as the tube, wholly exserted, their membranaceous summits connivent at the trun- 
cate apex, coriaceous and shortly bilobed at the base, all glabrous; style slender, short ; 
clavuncle thick, club-shaped ; stigmata short, terete, terminal; follicles 2, pendent, free, 
torose, striolate-suleate, acute, 10—13 in. long, the seminiferous lobes fusiform, 5 lines 
long, 2 lines thick, alternating with as many strangulations 4-2 line thick, 8 to 12 lines 
long, glabrous, fuscous; seeds linear-oblong, 5 lines long, crowned by a persistent 
rufescent, sericeous, very spreading coma 9 lines long. 
A drawing of this species, in flower and in fruit, is shown in Plate XXXV. s. 
4. FORSTERONIA MINUTIFLORA, Müll. /. c. p. 99. In Brasilia, loco ignoto (Claussen 1955) : v. s. in herb. 
meo (n. 8064), filio lecto ad Iguassu, prov. Rio de Janeiro. 
This plant agrees with Claussen's, as described by Müller, in the shape of its 
leaves and its inflorescence; only the leaves are somewhat smaller; the branches are 
glabrous, fuscous, the younger ones paler and puberulous; leaves ovate-lanceolate, 
obtuse or subeordate at the base, gradually and acutely acuminate, submembranaceous, 
dark green above, opake, of a rufescent hue, younger ones subpubescent, 12-21 in. long, 
4-7 lines broad, on slender petioles 22-3 lines long (in Claussen's plant the leaves are 
24-33 in. long, 11-12 lines broad, on petioles 2 lines long); raceme terminal, 21-3 in. 
long, narrowly subpyramidal, with many patent or subrefracted branchlets again closely 
divided, bearing very numerous minute flowers on very short slender pedicels ; sepals 
extremely minute, puberulous; corolla pubescent, 3 line long, tube extremely short. 
The plant bears no resemblance to the F. meridionalis of Müller, as stated by him ; 
it comes nearer to his F. Riedel. 
