206 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



29. Paspalum rupestre Trin. Linnaea 10: 293. 1836. 

 Wright 3444, 3445; near Habana, Hitchcock in 1906; Leon 286. 



The Grisebach specimen is from eastern Cuba, 1860, numbered "109=3445," and 

 is labeled, "Paspalum lindenianum Rich. (Megaphyllum Steud.)," under which 

 name it is listed in Grisebach 's Catalogue of Cuban Plants." A second specimen is 

 from western Cuba, 1863, and is numbered "939=3445." A third specimen collected 

 in 1863 and numbered "943=3444," is included by Grisebach in his cover of P. caes- 

 pitosum. Wright's 3445 in the Gray Herbarium is labeled "Pinales hear Baracoa, 

 June 15." 



30. Paspalum vaginatum Sw. Prod. 21. 1788. 

 Digitaria foliosa Lag. Gen. & Sp. Nov. 4. 1816. 



Hanabana, Doctor Robbins, Wright 3854; Habana, Curtiss 751; Batabano, Baker HC 

 2294, 1863.- 



The characters which separate this from P. distichum L., the glabrous spikelets and 

 more or less suppressed midnerve of the glume, may prove to be inconstant. Grise- 

 bach 's specimen from western Cuba, 1863, numbered 947, is this species. A part of 

 Wright 1546 (1546a) in the Torrey Herbarium has glabrous spikelets. and consequently 

 would be referred to P. vaginatum. 



Lagasca's type, labeled " Digitaria foliosa sp. n. ex Havana, Boldo iter," is in the 

 herbarium of the Botanical Garden at Madrid. 



31. Paspalum virgatum L. Syst. Xat. ed. 10. 2: 855. 1759. 



Paspalum leucocheilum Wright, Anal. Acad. Cienc. Habana 8: 203. 1871; Sauv. Fl. 

 Cub. 194. 



Isle of Pines, Curtiss 501, Taylor 42, Palmer & Riley 1057; without locality. Wright 

 3446; La Magdalena, Baker HC 3626, Britton & Shafer 213 in Herb. X. Y. Bot. Gard.; 

 Santiago de las Vegas, Baker HC 544, 595; Las Acostas, Baker ]\C 52 12. 5246; Batabano. 

 Baker HC 3967; Arroyo Galiano, Baker HC5211; Habana, Tracy, Baker & Hasselbring 

 HC3085, Tracy 9120, 9122, 9123, 9124; Guanabacoa, Leon L95; Herradura, Tracy 9127, 

 Hitchcock in 1906; San Diego de los Bafios, Palmer & Riley 628; Guinea, Leon 578, 

 Pinar del Rio, Shafer 179 in Serb. N. Y. Bot. Gard.; Matanzas, Britton & Wilson 155, 

 455 in Herb. N. Y. Bot. Gard. 



Grisebach 's specimen is numbered 302 (labeled (i stramineum), while the specimen 

 in the Sauvalle Herbarium bears this number in addition to no. 34 16. The type speci- 

 men of P. leucocheilum Wright is in the < rray Eerbarium. The spikelets are somewhat 

 smaller than normal (2 mm. long), and the inflorescence consists of a single spike 

 partially concealed in the uppermost sheath. The spikelets have the shape and 

 pubescence of P. virgatum. 

 31a. Paspalum virgatum schreberianum Flugge, Mon. Pasp. L90. 1810. 



Guanajay, Palmer & Riley 813 in part; Herradura, Hitchcock in L906; Batabano, 

 Hitchcock in 1906; Habana. Tracy 9125,9126; Wright 3446 in Gray Herbarium; Rugel 

 898 in Gray Herbarium; Isle of Pines. Curtiss in W01 in Herb. N. Y. Bot. Gard. 

 Cienfuegos, Combs 262 in Herb. X. V. Bot. Card. 



This differs from /'. virgatum in its scarcely pilose rachisand oblong-obovate, acute, 

 glabrous spikelets. It appears to he a distinct species, but as the type has not been 

 examined, our plants are referred as above, rather than separated under a new name. 

 This form appears to be included in P. virgatum glabriusculum by Doell in Mar- 

 tius's Flora Brasiliensis '< Wright's 3446 in Gray Herbarium is labeled, "In large 

 tufts on sand bars of the Baracoa near X. Sophie, Sept. 11." 



32. Paspalum sp. 

 Wright :S848. 



This specimen in the Sauvalle Herbarium is too fragmentary to identify. It 

 appears to belong to noi f the species enumerated in the li<i It is listed in Sau- 



oSee note under /'. nanum. &2 2 : 89. L877. 



