366 



RABA (4141 Merrill) July, 1905. Mindanao, Davao (54G CopeJand) March, 

 1904; (100 DcVore & Hoover) April, 1903. 



Tropics of both hcniisplieres. 



Perliaps only a variety of Setaria (ihtuva, distingnislied from the typical state 

 of that species, especially in the decidedly i^nialler spikelets. 



(3) Setaria viridis (Linn.) Beaiiv. Agrost. (1812) 51; Kmith Enum. 1 

 (1833) 151; Miq. Fl. Ind. Bat. 3 (1859) 4G7 ; F.-Vill. Nov. App. (1883) 312; 

 Hook. f. Fl. Brit. Ind. 7 (1897) 80; llendle in Forbes & llenisl. .Tourn. Linn. 

 Soc. Bot. 36 (1904) 330. 



Luzon, Manila (Merrill) July, 1905. A single specimen foinid nlong a city 

 street, introduced. 



(4) Setaria laxa ]\Ierrill, sp. nov. 



(Julniis (lebilibiis, erectis, glabris, ramosis, at 1 in. altis; vaginis quam 

 internodiis iiiulto brevioribus, glabris vel sparse pilosis, margine sursum 

 ciliato-pilosis ; laminis linearibus vel anguste-lanceolatis, membranaceis, 

 7-lG cm. longis ; jianieiilis laxis, elongato-pyramidatis, ad 20 em. longis, 

 paiicifloris, ramis rannilisqiie interdiim pedieellis in setam pvoduetis, seta 

 scabra, 2—4 mm. longa; spiciilis paiieis, solitariis vel binis, glabris, 2-2.2 

 mm. longis. 



A slender, erect brancbed, nearly glabrous grass about 1 m. liigb, tbe 

 culms 1.5 to 2 mm. tbick^, glabrous; nodes glabrous. Slieatbs much 

 shorter than the internodes, glabrous or slightly pilose, the margins 

 above ciliate-pilose ; ligule ciliate; blades linear or narrowly lanceolate, 

 membranaceous, acuminate, 7 to 16 cm. long, 3 to 5 mm. wide, glabrous 

 or beneath along the nerves with few long white hairs, the margins and 

 nerves scabrous. Panicles lax, elongate or elongate-pyramidal, erect, 

 about 20 cm. long, the branches slender, erect-spreading, about 8 cm. 

 long, few-flowered, scabrous, the branches, branchlets, and sometimes the 

 pedicels produced into a 2 to 4 mm. long scabrous awn. Spikelets few, 

 purplish, solitary or in pairs, gla))rous, narrowly ovate, acute, 2 to 2.2 

 mm. long, the first glume 3-nerved, ovate, acute, 0.6 mm. long; second 

 glume 5-nerved, ovate, acute, 1.1 mm. long; third glume 5-nerved, 2 mm. 

 long; flowering glume 2 mm. long, narrowly ovate, acute, minutely 

 rugose. 



Luzon, Province of Laguna, Los Bafios (Hallier) December. 1903. 



A species characterized by its lax liabit and panicle, narrow leaves, and com- 

 paratively few spikelets. The panicle branches are slender and branched from 

 the base, usually solitary, alternate. Perhaps as near Panicum § PtycophtiUum 

 as Hclaria, Imt the narrow leaves are imt at all plicate and the pedicels usually, 

 but not always, end in a single bristle subtending the spikelet. No. 21157 /3 

 Koordcrs from Java is very nearly the same, but in that specimen the leaves are 

 t ubcrfuhilc liis])i(l or pilose. 



nOUBTFUL AND EXCLUDED SPECIES. 



Sktakia maoro.staciiya it. B. K.; F.-Vill. Nov. App. (1883) 312. 

 An American species (o which some Anstralian spccin\ens have been referred. 

 Not to l)e expected in the I'liilippines. 



Setakia verttcii.i.a ia Bcjiuv.; l-".\ill. Nov. .\p|'. (1.SS3) 312. F.-Villar's 



