508 ACANTHACEA. 
30. Ruellia tweediana, Griseb. Symb. ad Fl. Arg. p. 259% 
Cryphiacanthus angustifolius, Nees in DC. Prodr. xi. p. 199, saltem pro parte. 
Soutn Mexico, Jalapa (Galeotti). Hb. Kew. 
The Argentine plant may be a different species. 
| 7. BLECHUM. 
Blechum, P. Br. Hist. Jam. p. 261; Benth. et Hook. Gen. Plant. ii. p. 1082. 
Herbs. According to Bentham and Hooker there are only four species, all indigenous 
in Tropical America, and one of them, B. brownei, occurring in the Philippine Islands 
and elsewhere, though probably introduced. We can only enumerate the .published 
names. | 
1. Blechum angustifolium, R. Br. Prodr. Fl. Nov. Holl. p. 478; DC. Prodr. 
xi. p. 467; Griseb. Fl. Brit. W. Ind. p. 453. 
Ruellia angustifolia, Sw. Fl. Ind. Oce. i. p. 1070. 
Panama, banks of rivers (Seemann, 410).—AntiLtes. Hb. Kew. 
2. Blechum brownei, Juss. in Ann. Mus. Par. ix. p.270; DC. Prody. xi. p. 466 ; 
(erst. in Vidensk. Meddel. 1854, p. 168. 
Mexico; GuaTeMALA; Honpuras; PanamMa.—Southward to Ecuapor and in the 
West Inpizs. Hb. Kew. 
3. Blechum costaricense, CErst. in Vidensk. Meddel. 1854, p. 168; Walp. 
Ann. v. p. 665. 
Costa Rica, Aguacate (rsted). 
4, Blechum grandiflorum, Girst. in Vidensk. Meddel. 1854, p. 168; Walp. 
Ann. v. p. 666. 
NICARAGUA, mountains of Pantasmo, Segovia (Hrsted). 
5. Blechum henkei, Nees in DC. Prodr. xi. p. 467. 
Mexico (Henke). 
6. Blechum laxiflorum, Juss. in Ann. Mus. Par. ix. p. 270; DC. Prody. xi. 
p. 467. 
Panama, Chagres (fendler, 200).—Jamatca. Hb. Kew. 
7. Blechum linn#i, Nees in DC. Prodr. xi. p. 465; CErst. in Vidensk. Meddel. 
1854, p. 167. 
Mexico; Nicaragua; Panama. Hb. Kew. 
8. Blechum mexicanum, (Erst. in Vidensk. Meddel. 1854, p.169; Walp. Ann. 
v. p. 665. 
SoutH Mexico, Vera Cruz (Liebmann). 
