858 



8. Bpikelets lanceolate, 

 strongly acumi- 

 nate ; panicles 

 effuse ; branches 

 elongated, stiff, 



filiform (10) i*. trypheron 



5. Perennial. 



fi. First glume very small, subor- 

 bicular, nerveless. 

 7. Spikelets ovate to ovate- 

 lanceolate, acute ; stem 

 creeping, stolon iferous : 

 leaves usually con- 

 volute, glaucous (23) /'. repent 



7. Spikelets lanceolate, acum- 

 inate ; stem thick ; fre- 

 quently floating ; leaves 



flat (24) P. proliferum 



6. First glume 3 to 5-nerved (26) P. sarmvntosiim 



'2. Panicle branches produced beyond the terminal spikelet 

 into a rigid scabrous awn-like bristle equaling or 

 exceeding the spikelet. (§ Ptycophyllum.) 

 3. Panicle decompound ; leaves broad, ample, plicate.. (29) P. palmaefolium 

 1. Spikelets strongly laterally compressed. 



2. Spikelets minute, panicled ; flowering glume semilunar. 

 ( | Gibbosak.) 



3. Panicles densely flowered ; spikelets crowded (30) P. piUpes 



3. Panicles diffuse ; spikelets scattered, solitary. 



4. Panicles 25 to 40 em. long, very diffuse (31) P. iiutrus 



4. Panicles 10 to 15 cm. long, rather narrow.. (32) P. variinitum 

 4. Panicles less than 10 cm. long, often 



reduced to very few branches (33) P. warburyii 



2. Spikelets about 4 mm. long, distant, subsessile on a 

 slender, simple or sparingly divided rhaehis. 



(| PSEUDECHINOI.AKNA.) 



3. Empty glumes of the upper spikelets with hooked 



glands (34) P. unci>i<tl uni 



Sect. Paspaloideak. 



(1) Panicum flavidum KHz. Obs. 4 (177!) !H) 15; Kimtli Rev. Gram. 1 

 (182!)) 211. I. 11: Enum. 1 lis:}:}) 60: Hook. f. Fl. Brit. hid. 7 (1897) 29; 

 F.-Yill. Nov. App. (1883) 311; Vidal l'lian. Cuming. Philip. (1885) 157; Rev. 

 PI. Vase. Filip. (1886) 286; Merr, in Philip. Journ. Sci. 1 (1906) Suppl. 27: 

 Mez in Perk. Frag. Fl. Philip. (1!K)4) 142; Panicum floridum (Jsteri Beitr. Kenn. 

 Philip. Veg. (1905) 133. P. brizoidea Jaeq.j Miq. Fl. End. Bat, 3 (is.-)!)) 445. 



Philippines, (560 Cuming). Luzon. Manila t (IS McGregor) October. 1!)(>4; 

 (21, 265 Merrill) April, July, 1!X>2: Province of Bataan, Lamao (6148 Leiberg) 

 July, 1!)04; Dinalupijan (1526 Merrill) January, 1!)<>3: Province of Pampanga, 

 Bacolor (35 Parker) .May, 1!)()4: Province of Tayahas. Atimonan (128 Gregory) 

 August, 1904. Cebu {Borrow) 1!H)4. Palawan (4176, 4185 Outran) May, 1906. 

 Basilan (47 DeVore <(• Hoover) April, 1!)03. Bohol (124!) McGregor) June, 

 1 906. 



Tropical Asia, Africa, and Malaya. 



(2) Panicum punctatum Burm. Fl. End. (1768) 26; Hook. f. Fl. Brit. Ind. 

 7 (1897) 29. Panicum fiiiitans Hetz. Obs. 3 (1779-91) 8 (not 5: 18. teste 

 Hook. f.)j Miq. Fl. Ind. Pat. 3 (1859) 455; Rolfe in Journ. Hot. 23 (1885) 216; 

 Vidal Phan. Cuming. Philip. (1S85) 157; Rev. PI. Vase. Filip. (1SSC.) 287; 

 Ceron Cat. PI. Herb. (1892) ISO. Paspalum pluriraoemosum Steud. Syn. 1 

 (1855) 27; Miq. Fl. Ind. Pat. 3 (185!)) 431; F.-Vill. Nov. App. (1883) 310. 



