148 
, A pllosissima; Scrophyton pilosissimum Benth. Voy. 
of Sulph. p.53; Aphora pilosissöine Torr. Mex. bonnd. Surv. 
p. 197. hd. In Texas (Drummond n. 263, 322. in hb, Benth.i, 
Lindheimer n. 175! Berlandier n. 25661). 
A. mercurialinn; Aphora mercurialina Nutt. Trans- 
act. Amer. Phil. Soc. N. Ser. vol. 5. p. 1374; Serophyton 
Drummondi Benth. Voy. Suiph. p. 53. &. In Texas (Mat- 
‚thes n. 66! Drummond n. 317. in hb. Benth.! Wright! Liud- 
heimer n. 5181), ad Red River (Nutt.! in bb. DC.) et in Ar- 
kansas (A. Gray! in bb. DC.). . 
A lanceolata; Serophyton lanceolatum Beuth. in Voy. 
of Sulph. p. 52. 2. In California ad Sinum Magdalenae (Bar- 
elay! in hb. Hook.). 
Sect, 5. Euargyrothamnia; Argylhamnia Sw. 
Prodr. p. 39, (1789); Argothannia Spreng, Syst. Veg. 3. 
p- 847, " 
Sect. 6. Chiropetalum; Chiropetalum Ad. Juss. in 
Annal. des Sciences nat. vol. 25. p. 21. (1832); Baill. Btud 
gen. Enph. p. 336. 1. 15. fig. 37 — 41; Desfontanaea Veil. 
Flor. Flum, vol, D. 4 46; Chlorocaulon Kl. in Endl, Gen. pl. 
Sappl. 5. p. 89. (charaet. ex parte omnine falsis); Bail, Eind, 
gen. Eupb. p- 479. — Pili vulgo adpresso -bibrachiati, qnası 
medio adnati, malpighiacei. 
A Sponiella, indumento simpliei velutino, limbo folio- 
rum gninfuplinervio, bracieis ohovatis, petalis tenellis pro- 
funde et divergenter. palmato- 3 — 5-partitis, glandulis gla- 
brig, ovario hirte. b In Peruria ad Cobija (Gandich.! in hb. 
Kunth, nune in hi. berol. et in hh. DC.) — Foliorum timbu 
lanceolatus, sensin obinse acuminatus, basi obtasus, 2 — 
em, longus, 5—12 mm, latns, Petala foeminca rudimentaria 
— A eongeneribus omnibus differt indumento simpliei. 
