ON SOTJTH-AMEEICAN APOCTNACE^. 261 



rather broad midrib and 6-8 pairs of semi-immersed nerves, with laxly reticulate veins, 

 6-8 in. long, 2-3^ in. broad, subdecurrent on petioles 2J-7^ lines long ; raceme solitary 

 at the nodes, one third the length of the leaves, on a puberulous peduncle bearing 

 alternate or geminate jlowers on slender pedicels, supported by much shorter bracteoles ; 

 sepals ovate-lanceolate, acuminate, greenish, membranaceous, 7^ Hnes long. 



The immature flower was useless for examination ; but the plant is placed near H. 

 acutifoUa by Miiller. 



16. HjEmadictyon schizadenium, Miill. in Linn. xxx. p. 431. In Mexico, acl Papantla: non vidi. 



Its branches are subangular and scabrid ; leaves oblong-ovate or oblong-elliptic, 

 rounded and subcordate at the base, shortly acuminate, rigidly membranaceous, margins 

 revolute, yellowish green above, glabrous, beneath punctulate-scabrid, with conspicuously 

 reticulate nerves and veins, 4i|-6 in. long. If in. broad, on petioles 2|-3f lines long ; 

 raceme at the nodes half as long as the leaves, on a flexuose peduncle bare for 1 in., 

 bearing above many approximately geminate flowers on pedicels as long as or longer 

 than the calyx ; sepals ovate or oblong-ovate, acute, glabrous, punctulate-scabrid, 6f lines 

 long, 2y lines broad, with an inner acutely ovate denticulate scale ; corolla 1 in. long, 

 its tube glabrous, 8 lines long, segments 4 lines long; stamens inserted above the 

 middle of the tube, on a retrorsely pilose ring ; anthers dorsally hispid ; the appendages 

 scarcely exserted beyond the callous riug in the mouth of the tube ; disk of 5 erect 

 oblong laciniate lobes, connately cup-shaped at the base, and longer than the 2 ovaries. 



17. HiEMADiCTYON TRiFiDUM, Popp. Nov. Gcn. iii. p. 67, tab. 275. In Peruvia, prov. Maynas, ad Ynri- 

 maguas : non vidi. 



A cHmbing species, having a round stem 2 in. thick, with many twisted terete or 

 angular, striate, fistulous, glabrous branches 2 lines thick, with axils 6-8 in. apart 

 leaves elliptic-ovate, acute at the base, with a short sudden acumen, coriaceous, glabrous, 

 green above, with 6 pairs of fine divergently arcuate nerves, yellowish-green beneath, 

 with a carinate midrib, prominent reddish nerves and reticulate veins, 6 in. long, 3^ in. 

 broad, on stout channelled petioles 4 lines long, conjoined across the node by a prominent 

 crenulate ridge ; the younger leaves are smaller, the older ones 12 in. long and 10 in. 

 broad ; panicle solitary and lateral at the nodes, 6 in. long, on an elongated slender 

 peduncle 4 in. long, trifid at its apex, each branch bearing 12-20 subapproximate flowers 

 on alternate pedicels 3 lines long, supported by acute bracteoles 1 line long ; sepals ovate- 

 lanceolate, acute, coriaceous, puberulous at the base, 5 lines long, each with an inner 

 oblong scale ; corolla hypocrateriform ; its tube cylindrical, 7 lines long, a little swollen 

 in the middle, with an annular ring in the mouth, and beneath it 5 shortish linear in- 

 cluded appendages; segments obliquely ovoid, 3 lines long; stamens inserted in the 

 middle of the tube, included ; anthers acuminate, biaristate at the base ; disk of 5 ovate 

 lobes, nearly as long as the 2 ovate ovaries. 



18. HiEMADiCTYON PAPILLOSUM, Miill. in Linn. xxx. p. 433. In Nova Granada (Triana 157) : non 

 Its branches are slender, fuscous, papillosely scabridulous ; leaves oblong-ovate, nar- 



