208 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



equal, ovate-acuminate, pilose with appressed hairs, sterile lemma empty; fertile 

 lemma oval, glabrous, 1.5 mm. long, tipped with a slender scabrous awn about 1 

 mm. long. 



Jata Hills near Guanabacoa, Hitchcock, March 15, 1906, no. 559392 in the U. S. 

 National Herbarium (type). 



2. Eriochloa punctata (L.) Hamilt. Prod. Fl. Ind. Occ. 5. 1825. 

 Milium punctatum L. Syst. ed. 10. 2: 872. 1759. 



Wright 1542; Yumary Mountains, Rug el SS9 in Herb. N. Y. Bot. Gard. 



There are two specimens of this species in the Grisebach Herbarium, both from 

 eastern Cuba, one collected in 1859, marked 1542, the other in 1860, \\dth the sec- 

 ondary number 95. In the Gray Herbarium there are also two sheets of the same, 

 one collected near Monte Verde, eastern Cuba, in 1859, "River bank Saltadero, 

 Sept. 11," the other from "Sand bars of the Baracoa near N. Sophie, Sept. 11," 

 1860-1864. 



3. Eriochloa ramosa (Retz.) Kuntze, Rev. Gen. PI. 2: 775. 1891. 

 Milium ramosum Retz. Obs. 6: 22. 1791. 



Paspalus annulatus Fltigge, Mon. Pasp. 133. 1810: 



Eriochloa annulata Kunth, Rev. Gram. 1: 30. 1829. 



Wright^SSQ. 3 ^6"^^ lf<^'M'^rt^^^9 



This agrees with Asiatic specimens and may be introduced. It differs from 

 E. punctata in the narrower blades and the shorter awn to the fruit. 



Allied to these is the Porto Rican Eriochloa subglabra (Nash). {Monachne 

 subglabra Nash, Bull. Torr. Club 30: 374. 1903; Eriochloa punctata subglabra Urban, 

 Symb. Antill. 4: 85. 1903). This species differs from E. ramosa in the broader 

 blades and pronouncedly velvety nodes, and in habit; from E. punctata .in the 

 mucronate, instead of slender-awned, fertile lemma, and from both in having a 

 staminate flower in the axil of the sterile lemma. Urban reduced this to a variety 

 of E. punctata without having seen the plant. 



23. ISACHNE R. Br. Prod. 196. 1810. 



1. Isachne leersioides Griseb. Mem. Amer. Acad. n. ser. 8: 533. 1862. 



Wright 755 in National Herbarium (1547 in Sauvalle Herbarium). 



Number 755 in the Sauvalle Herbarium is Panicum exiguiflorum. In the Grise- 

 bach Herbarium there are two specimens of Isachne leersioides collected by Wright 

 in eastern Cuba — one in 1859, numbered 755, and one in 1860, numbered 102. In 

 the Gray Herbarium there are three specimens bearing the number 755. One is 

 P. exiguiflorum; the other two are Isachne leersioides, both from eastern Cuba — one 

 in 1856-57, the other from Monte Verde in 1859. Isachne Uersioides is listed in Sau- 

 valle's Flora Cubana as no. 1547. 



24. SYNTHERISMA Walt. Fl. Car. 76. 1788. 



Rachis of racemes wing-angled. 



Spikelets 3 to 4 mm. long, more or less villous on nerves; rachis 



not pilose. 4. S. sanguinalis. 



Spikelets 2 mm. long, glabrous; rachis sparsely long-pilose 1. S. digitata. 



Rachis of racemes angled but scarcely winged. 



Spikelets about 3 mm. long, nearly glabrous. 5. S. simpsoni. 



Spikelets 1. 5 to 2.5 mm. long, usually villous-ciliate . 



Racemes usually less than 10 cm. long; spikelets 1.5 mm. 



long 2 . aS. filiformis. 



Racemes usually more than 10 cm. long; spikelets 2 to 2.5 

 mm. long. 



