ON SOTJTH-AMEEICAN APOCTNACE^. 103 



enclosing many imbricate seeds on a narrow cyliadrical placenta emanating from the 

 ventral suture; seeds acutely oblong, 3 lines long, -i line broad (immature), with 

 pellucidly membranaceous margins, reddish, marked on the ventral face by the hilum, 

 and without the indication of a coma ; embryo unknown. 



A drawing of this species, with its floral and carpological analyses, is given in 

 Plate XIII. B. The latter analysis agrees precisely with Mr. Bentham's description 

 of his typical species in Hook. Journ. Bot. iil. 246. 



25. Thyrsanthtts multinervius, nob.: Forsteronia muUinenia, A. DC. I. c. p. 437; Miill. I. c. p. 104: 



Wheeleria oppositifolia, Solander, Prim. Fl. Bras. p. 66. In Brasilia, prov. Rio de Janeiro : v. s. in 

 herb. Mus. Brit. Rio de Janeiro (Solander, a.d. 1786), Rio Parahybnna (Gardner 5543). 



A species described by De OandoUe from a plant collected by Gomez in the neigh- 

 bourhood of Bio de Janeiro, with which the above specimens well agree. It is a climb- 

 ing plant, with subflexuous, ferruginously pilose, lenticeUate branches, the axils 1 in. 

 apart ; leaves ovate oblong, subobtuse at the base, acutely acuminate and mucronulate, 

 submembranaceous, green with a reddish hue above, with about 12 pairs of parallel 

 subascending nerves and transverse reticulated veins, sparsely pilose, especially on the 

 nerves, with 2 distinct glands at the base of the midrib almost concealed by the hairs, 

 more densely pilose beneath, 3-5 in. long, 1-lf iu. broad, on pubescent petioles 2-3 lines 

 long ; inflorescence axillary on a subdeflexed peduncle 4 lines long, subcapitate, 1 in. in 

 diameter, consisting of very numerous small flowers on very approximate branchlets 

 bare at the base for 3 lines, each bearing about 8 crowded subspicate flowers on pubescent 

 pedicels 1 line long, each furnished with a small lanceolate bract ; sepals acutely oblong, 

 puberulous, f line long ; corolla glabrous, 2 lines long ; tube only J line long, bearing 

 withiu a dense ring of white hairs ; segments oblong, submembranaceous, of a red colour, 

 smooth on both sides, a small tuft at the base of the median nerve, with dextrorse con- 

 volution, the right inside margin involute ; stamens inserted on the pilose ring ; filaments 

 verv short ; anthers oblong, small, shortly bicleft at the base, terminated by an inflexed 

 membranaceous point ; disk 5-lobed, as long as the 2 pilose oval ovaries. 



A species near T. bracteatus. 



26. Thtrsanthus Brasiliensis, nob. : Forsteronia Brasiliensis, A. DC. I. c. p. 436 ; Miill. I. c. p. 102 : 

 Echites torquata, Cas. (?) PI. Bras. n. 1601. In Brasilia: v. s. in hb. meo (n. 5057), Pernambuco 

 (Gardner 1059). 



An erect shrub, 5 feet high, with slender, rufescent, glabrous, lenticeUate branchlets, 

 havino- axils 1 in. apart ; leaves opposite, oblong, narrower below the middle, rounded at 

 the base, suddenly contracted at the summit into an obtuse acumen, submembranaceous, 

 glabrous, darkish green above, sulcate on the midrib, with 2 small glands at its base, 

 nerves semi-immersed, somewhat paler beneath, with prominulent reddish nerves and 

 reticulated veins, 1|-2| in. long, 9-13 lines broad, on puberulous channelled petioles 

 2 lines long; a subglobose panicle 6 lines in diameter, on a peduncle 3 lines long, 

 bearing many small agglommerated flowers on pedicels J line long, and an acute bract of 

 the same length ; sepals lanceolate, 1 line long ; corolla 2 lines long, with a very short 



