308 MISC. PUBLICATION 243, U.S. DEPT. OF AGRICULTURE 
Puerto Rico: Vieques Island, Shafer 2549. Mayaguez, Chase 
6824, 6825. 
LrEwarp Istanps: Antigua, Bor 119. 
9. Lasiacis patentiflora Hitchc. and Chase, Contrib. U.S. Natl. Herb. | 
18: 338. 1917. Tobago, Hitchcock 10268. 
High-climbing with a strong central cane as much as 8 mm thick, 
glabrous throughout except at the summit of the sheaths; branches 
numerous, solitary, widely spreading and finally repeatedly branching; 
sheaths with a ring of hairs at the summit or at least a tuft of hairs 
on either side, sometimes pubescent on the margins toward the sum- 
mit; ligule about 0.5 mm long; blades on vigorous shoots as much as 
14 cm long, and 2.5 cm wide, but mostly about 8 to 12 em long and 
1.5 to 2 cm wide, acuminate, rounded-tapering to the base, usually 
somewhat asymmetric, glabrous, scabrous on the margin and some- 
what so on both surfaces; panicles numerous, mostly 12 to 20 cm long, 
nearly as wide, the slender axis and distant spreading flexuous branch- 
lets angled, scabrous, the pedicels flexuous, spreading; spikelets pale, 
blotched with dark blue or purple at maturity, 3.4 to 3.8 mm long, 
globose-obovoid. 
In habit and general appearance L. patentiflora resembles P. sloanei, 
from which it differs in the narrower average width of the blades and 
the more loosely flowered, rather large panicles with smaller spikelets 
on flexuous spreading pedicels. 
Borders of woods and jungles, West Indies and Central America 
to Venezuela. 
Harti: St. Michel de |’Atalaye, Leonard 7776. Thibaud, Ekman 
H 2624. St. Louis du Nord, Leonard 14292. Miragoane, Eyerdam 
O94. 
ee Repusuic: Without locality, Wright, Parry, and Brum- 
mel 614. 
Purerto Rico: San Juan, Chase 6412. 
LEEWARD IsLANDs: Dominica, Jones 49; Ramage in 1889. 
WINDWARD IsutaNps: St. Vincent, Eggers 6546. Grenada, Broad- 
way 227, 947, 1385, 4666, 4674a. 
Trinipap: Manzanilla, Hitchcock 10374. Port-of-Spain, Hitchcock 
9990 (Amer. Gr. Nat. Herb. 592), 10034, 10037, 10323, 10324. 
Topaco: Broadway 4841; Hitchcock 10255, 10257, 10268, 10270. 
10. Lasiacis sorghoidea (Desv.) Hitche. and Chase, Contrib. U. S. 
Nat. Herb. 18: 338. 1917. 
Panicum lanatum Swartz, Prodr. Veg. Ind. Occ. 24. 1788. Not 
P. lanatum Rottb., 1776. Jamaica. 
Panicum sorghoideum Desy.; Hamilt., Prodr. Pl. Ind.Occ.10. 1825. 
Puerto Rico. 
Panicum lanatum var. sorghoideum Griseb., Fl. Brit. W. Ind. 551. 
1864. 
Panicum martinicense Griseb., Fl. Brit. W. Ind. 552. 1864. Mar- 
tinique. 
Panicum swartzianum Hitche., Contrib. U. S. Natl. Herb. 12: 140. 
1908. Based on P. lanatum Swartz. 
Lasiacis swartziana Hitche., Bot. Gaz. 51: 302. 1911. 
Culms much branched, erect or clambering to a height of 5 to 7 m, 
the strong central cane as much as 1 cm thick, glabrous or pubescent, 
