458 CYPERACEE. 
8. Dichromena pubera, Vahl, Enum. Pl. ii. p. 241; Kunth, Enum. PI. ii. 
p. 275, excl. synon. fide Boeck. 
Rhynchospora pubera, Boeck. in Linnea, xxxvii. p. 528. 
Dichromena humboldtiana, Nees, Cyper. Bras. p. 111. 
Dichromena radicans, Jungh. ex Ch. et Schl. in Linnea, vi. p. 28; Liebm. Mexicos Halvegr. 
p. 59. 
Dichromena tenuis, Steud. Cyper. p. 135. 
Sourh Mexico, woods at 3000 feet in the Cordillera of Oaxaca (Galeotti, 5719), 
Jalapa, Vera Cruz (Linden, 78, 105), Vera Cruz to Orizaba (Miiller, 1956, 1957 bis), 
Santa Maria, Tlapacoyo, Hacienda de Jovo &c. (Liebmann), region of Orizaba 
(Bourgeau, 2585), Sierra San Pedro Nolasco &c. (Jurgensen, 658), without locality 
(Ghiesbreght ; Harris); Costa Rica (ex Beckeler).—VENEZUELA to GUIANA and BRAZIL, 
and in the West Inpies. Hb. Kew. . 
We should regard the Mexican plant as specifically distinct from the South-American 
and West-Indian with which Boeckeler associates it, for all the specimens that we have 
seen are at once distinguishable by their slender habit and solitary spikelet; but as 
we have not had an opportunity of examining authentic specimens of Vahl’s proposed 
species, we follow Boeckeler in the synonymy. 
[Pstlocarya, a genus closely allied to Dichromena, is restricted by Bentham and 
Hooker to four species, three of which inhabit North America and one Cuba; the 
Mexican species referred by Boeckeler to this genus being placed in Rhynchospora.] 
5. FIMBRISTYLIS. 
Fimbristylis, Vahl, Enum. Pl. i. p. 285; Benth. et Hook. Gen. Plant. iii. p. 1048. 
A large genus generally diffused in Tropical countries ; rare in Temperate and absent 
from Frigid regions. About 300 species have been published; many of them, however, 
are repetitions or mere varieties, and Bentham and Hooker estimate the number to be 
retained at barely 200. 
1. Fimbristylis autumnalis, Rem. et Schult. Syst. Veg. ii. p. 97; Kunth, 
Enum. Pl. ii. p. 227; Boeck. in Linnea, xxxvii. p. 38; S. Wats. in Proc. Am. Acad. 
xviil. p. 171; Liebm. Mexicos Halvgr. p. 50; Schl. in Bot. Zeit. 1849, p. 136. 
Scirpus autumnalis, Linn. Mant. p. 180. 
Trichelostylis mucronulata, Torr. in Ann. Lyc. Nat. Hist. N. York, iii. p. 355. 
Canapa to Texas.—SoutH Mexico, Hacienda de la Laguna (Schiede), Potrero de 
Consoquitla (Liebmann).—VENEZUELA to Brazi.; West Inpins; TROPICAL “ASU ; 
POLYNESIA. is 
We have seen no Mexican specimens that we could refer with certainty to this 
species. 
