CYPEBACEAB 119 



1. F. clliarl* (L.) Roxb. (F. glomerata Lam.). 



An annual, tuftefl, rather flaccid, usually hairy plant 15 to 40 cm high. 

 Leaves scattered along the stems, 5 to 15 cm long, 4 to 7 mm wide. Clus- 

 ters of spikelets 1 to 3 on each stem, rather dense, 1.5 to 2 cm in diameter, 

 each composed of from 3 to 12, 5, to 10 mm long spikelets. Glumes very 

 numerous, oblong-ovate, with a terminal, aristate, straight, hairy, 1.5 to 2 

 mm long awn. Petals clawed. Nutlet brown, 3-angled, smooth, about 

 1 mm long. 



Abundant in old rice-paddies, Caloocan, San Peflro Macati, etc., fl. 

 Oct.-Jan.; throughout the Philippines. Tropical Asia and Africa, through 

 Malaya to Australia. 



11. LIPOCARPHA R. Brown 



Glabrous, erect, tufted plants, the stems leafy only near the base, bearing 

 a single head of few spikelets, the perfect flowers numerous. Glumes 

 spirally arranged, deciduous, leaving the persistent rachilla marked with 

 lozenge-shaped scars. Hypogynous bristles represented by 2 elliptic scales 

 as long as the nut, style short, 2- or 3-fid. Nut small, oblong or ovoid, 

 plano-convex, smooth, reticulate. (Greek "fat'- and "chaff," in reference 

 to the thick glumes of some species.) 



Species about 13, of wide distribution, 2 in the Philippines. 



1. L. microcephala (R. Br.) Kunth. 



'A slender, erect, tufted annual 10 to 40 cm high. Leaves narrow, 

 slender, 2 to 10 cm long. Spikelets 1 to 4 at the ends of the stem, sub- 

 tended by 2, slender, leaf -like unequal bracts. Spikelets ovoid, 3 to 5 mm 

 long, the glumes linear-lanceolate, very numerous, 2 mm long, the tips 

 long-acuminate, spreading. Nut linear-oblong, about 1.2 mm long. 



In open places, Malabon, Pasay, fl. Sept.-Dec.; of local occurrence in 

 the Philippines. Southeastern Asia to Australia. 



12. RYNCHOSPORA Vahl 



Tufted or scattered erect plants with long narrow leaves. Spikelets in 

 one or more heads, or panicled. Glumes often 7 or 8, the lower ones dis- 

 tichous, the upper spiral, the lower 3 or more empty, the next usually 

 longer and containing a perfect flower, the next also nut-bearing, the 

 upper ones male or sterile. Hypogynous bristles often present. Style 

 dilated at the base, long, 2-fid, arms long or short. Nut oblong or ovoid, 

 compressed, the style-base persistent. (Greek "beak" and "seed.") 



Species about 150, most ' numerous in tropical America, about 3 in the 

 Philippines. 



1. R. rubra (Lour.) Makino (R. wallichiana Kunth). 



A tufted, erect, rather slender, wiry, glabrous plant, the stems 20 to 60 

 cm high. Leaves mostly near the base, rather numerous, 10 to 30 cm 

 long, about 2.5 mm wide. Heads solitary, dense, terminal, subglobose, 

 1 to 1.& cm in diameter, each subtended by several, short, leaf-like bracts 

 and containing from 20 to 50 spikelets. Glumes 6 or 7, brown. Nut ovoid, 

 about 2 mm -long. 



In open grass lands, Caloocan, fl. Aug.-Dec; widely distributed in the 

 Philippines. India to Japan, Malaya, and Australia. 



