HITCHCOCK—-GRASSES OF CUBA. 195 
10. HOLCUS L. Sp. Pl. 1047. 1753.4 
1. Holcus halepensis lL. Sp. Pl. 2: 1047. 1753. 
Andropogon halepensis Brot. Fl. Lusit. 1: 89. 1804. 
Sorghum halepense Pers. Syn. 1: 101. 1805. 
Habana, Curtiss 561, Leon 271; Santiago de las Vegas, Baker HC 503, Hitchcock in 
1906; Guanajay, Palmer & Riley 664, 815; without data, Wright 3488; Vedado, Leon 
424, 
Wright’s 3488 in the Grisebach Herbarium bears the data, ‘Cub. or. 1860-64, fields 
near Matanzas.”’ 
11. SORGHASTRUM Nash in Britton, Man. 71. 1901.0 
Awn 10 to 15 mm. long.............2200.0-0-..0.20.-2022-2--2---- lL. S. francavillanum. 
Awn not over 2mm. long..........2220.00.0.00.0 002222 e cee 2. 8. sefosum. 
1. Sorghastrum francavillanum (I ourn.). 
Andropogon francavillanus Fourn. Mex. Pl. 2: 56. 1886. 
Pinar del Rio, Wright 3896; Herradura, Baker 11C 2179. ; 
The Sauvalle specimen has two labels, ‘‘Sandy pine woods Oct.,’’ and ‘‘ Low savan- 
nas and pinales Sept.’ The Wright specimen in the National Herbarium has an 1865 
label. This species has a loose panicle, with slender branches; the spikelets are about 
5 mm, long, light brown, sparsely pilose on the lower half; the pedicel of the upper 
spikelet about 4 mm. long, awn 10 to 15 mm. Jong, once, or more or less twice, genicu- 
late; blades long and folded or convolute, about 3 mm. wide. I have not seen Four- 
nier’s type of this, but his description applies to the Cuban plant. 
2. Sorghastrum setosum ((rriseb.). 
Andropogon setosus Griseb. Cat. PI. Cub. 255, 1866. 
Wright 3897. 
The specimen in Grisebach’s herbarium, which is the type, has a blank label 
of 1865 and bears the secondary number 208. The Sauvalle Herbarium contains 
a specimen accompanied by a similar label with no. ‘‘208” and a second of the same 
kind, with no. ‘3897” and also a label with habitat, ‘‘Bushy savannas, Hanabana, 
June 1.’ This is a duplicate type. Wright’s 3897 in the Gray Herbarium is from 
“Bushy savannas, Hanabana, June 6.”’ 
The inflorescence is comparatively dense; the spikelets smaller than in the pre- 
ceding, only about 3 to 3.5 mm. long, long-pilose all over; pedicel of the upper 
spikelet 2 to 3 mm. long; awn none or short and exserted | to 2 mm.; blades flat, 
5 mm. wide, about 15 cm. long. 
12. RHAPHIS Lour. Fl. Cochinch. 552. 1790. 
1. Rhaphis pauciflora (Chapm.) Nash in Small, Fl. Southeast. U.S. 67. 1903. 
Sorghum pauciflorum Chapm. Bot. Gaz, 8:20, 1878. 
Sandy pine woods, Pinar del Rio, Wright 3895; Isle of Pines, Taylor 46. 
This is listed in Sauvalle’s Flora Cubana as ‘‘ Andropogon (Chrysopogon) wrightii 
Munro,”’ but is without description. Under this are mentioned nos, 293 and 263. 
« Holeus sorghum L. must be considered the type of the genus Holcus since it is 
the most important economic species of the genus and further, since, in the fifth edi- 
tion of his Genera Plantarum, Linnzus refers to the genus Sorgum Mich feli] as a 
synonym of Holcus. 
6 Poranthera Raf. (Ser. Bull. Bot. 1: 221. 1830) has for its type Andropogon nutans 
L., but the name was previously used for a genus of Euphorbiaceae (Rudge, Trans. 
Linn. Soc. 10: 302, 1811), The type species of Sorghastrum Nash is Andropogon 
avenaceum Michx., which is the same as A. nutans LL. 
