392 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
agree with Nees’s description of Eragrostis purpurascens! and with the Sello 
specimen cited by him. 
18. Eragrostis prolifera (Swartz) Steud. Syn. Pl, Glum, 1: 278, 1854. 
Poa prolifera Swartz, Prodr. Veg. Ind. Occ. 27. 1788. 
Poa domingensis Pers. Syn. Pl. 1: 88. 1805. 
Eragrostis gigantea Trin. Mém, Acad. St. Pétersb. VI. Math. Phys. Nat. 1: 
403. 1830. 
Hragrostis domingensis Steud. Syn. Pl. Glum. 1: 278. 1854. 
Eragrostis excelsa Griseb. Cat. Pl. Cub. 227. 1866. 
Culms often in large clumps, erect, sometimes stoloniferous, commonly robust, 
as much as 2 meters tall, the branches sometimes fascicled; blades elongate, 
involute toward the ends; panicles large, open, or somewhat contracted, the 
spikelets pale, usually many-flowered. Specimens of. this species from the 
West Indies rarely show indication of stolons, and the branches are but 
sparingly fascicled. At Cartagena, Colombia, where the species is abundant 
on the sand spit, the plants develop extensive stolons with tufts of branches, 
suggesting the name “ prolifera.” 
Sandy soil near the coast, West Indies and northern South America. Poa 
prolifera was originally described from “ Insulae caribaeae.” Swartz later? 
gives as the localities, “ Lucia, Guadeloupe.” Poa domingensis and E. gigantea 
were described from Santo Domingo and FH. ercelsa from Cuba, the type being 
Wright 3425 from Toscana, Pinar del Rfo. . 
Bahamas (Whale Cay), central and western Cuba, Grand Cayman, south- 
eastern Jamaica, Haiti, Guadeloupe, and Martinique. 
e 
94. SENITES Adans. 
Spikelets few to several-flowered, the lowest floret perfect, the others stami- 
nate, the rachilla joint between the perfect and staminate florets elongate; 
glumes and fertile lemma herbaceous, broad, with transverse veins between the 
nerves, obtuse or truncate, the glumes about half as long as the lemma; sterile 
lemmas membranaceous, narrower, acute. 
Culms upright at the base; summit of the sheaths glabrous______ 1. S. zeugites. 
Culms trailing; summit of the sheaths as well as of the petioles bearing stiff 
hairs____-___---_-------- 2. S. haitiensis. 
1. Senites zeugites (L.) Nash; Hitche. Contr. U. S. Nat. Herb. 12: 127. 1908. 
Apluda zeugites L. Syst. Nat. ed. 10. 2: 1306, 1759. 
Zeugites jamaicensis Raeuschel, Nom. Bot. ed. 8. 270, 1797, nomen nudum. 
Zeugites americana Willd. Sp. Pl. 4: 204. 1805. 
A loosely tufted branching glabrous clambering perennial 0.5 to 1 meter tall; 
culms glossy brown or black, resembling fern stipes; blades on slender, often 
spreading petioles, ovate, 2.5 to 4 cm. long; panicles mostly 5 to 7 cm. long, 
loosely flowered, the branches and pedicels capillary ; glumes and fertile lemma 
truncate. 
Rich woods, above 1,000 meters altitude. Blue Mountains, Jamaica. De- 
scribed from Jamaica. 
2. Senites haitiensis (Pilger), 
Zeugites americana subsp. haitiensis Pilger in Urban, Symb. Antill, 6: 3. 1909, 
Culms very slender, trailing, rooting at the nodes; blades ovate, about 2 cm. 
long; glumes and fertile lemma abruptly tapering at summit. Known only 
* Agrost. Bras. 506, 1829. * Fl. Ind. Oce. 1: 216. 1797. 
