GRAMINEAE 83 
In open, dry grass lands in poor soil, San Pedro Macati, etc., fl. 
July—Jan.; of local occurrence in the Philippines. New Guinea, New Cal- 
_ edonia, and Australia. 
4. A. conTorTuS L. (§ Heteropogon.) 
A tufted or somewhat scattered grass 1 m high or less, the stems com- 
pressed below, simple or somewhat branched, the spikes solitary, terminal. 
Leaves flat, 10 to 20 cm long, 4 to 7 mm wide. Spikes 10 cm long or less, 
the spikelets about 8 mm long, densely imbricated, the lower few pairs 
staminate or neuter, the upper ones perfect, all hirsute, the awn of the 
fourth glume stout, twisted, geniculate, about 10 cm long. 
In open dry lands, Caloocan to San Pedro Macati, fl. most of the year; 
rather widely distributed in the Philippines, and surely introduced. All 
warm countries. 
5. A. intermedius R. Br., var. haenkei (Presl) Hack. (§ Amphilophis.) 
An erect, somewhat stout, loosely tufted, perennial grass, usually about 
1 m high. Leaves linear, 20 to 40 cm long, 4 to 6 mm wide. Panicles 
compound, somewhat purplish, 15 to 20 cm long, the branches numerous, 
ascending or somewhat spreading, each bearing from 2 to 6, slender, pedi- 
celled spikes, the rachis easily breaking up. Spikelets about 3 mm long, 
the fourth glume of the sessile ones reduced to a slender awn nearly 1.5 
em in length. 
In dry open grass lands, San Pedro Macati, fl. July—Nov.; widely dis- 
tributed in the Philippines. Southern China and Ceylon, the species also 
in India, Africa, Malaya, and Australia. 
6. A. ACICULATUS Retz. (§ Chrysopogon.) Amores secos (Sp.—Fil.) ; Mo- 
riscos (Tag.). 
Stems densely leafy, creeping and branching below, the flowering stems 
erect, 20 to 60 cm high. Leaves short, linear-lanceolate, obtuse or acute, 
3 to 10 cm long, 4 to 6 cm wide, those on the wire-like flowering stems few. 
Panicles purplish, open, the branches few, whorled, simple, 5 cm long or 
less, bearing few-flowered spikes, branches bearded at the tips. Sessile 
spikelet very narrow, about 3 mm long, the callus elongated, barbed, the 
fourth glume linear, acuminate, bearing a short, scabrid awn. 
In open grass lands, waste places etc., very common, fl. May-—Dec.; 
throughout the Philippines, certainly introduced. India to Polynesia. 
Very troublesome on account of its spikelets adhering to clothing etc., by 
their sharp, barbed stalks. . 
7. A. ZIZANIOIDES (L.) Urb. (A. squarrosus L. f.). (§ Vetiveria.) Moras, 
or Raiz.de mora (Sp.-Fil.); Vetiver. 
A tall, coarse, erect, tufted, perennial grass 1 to 2 m high, with fragrant, 
fibrous roots. Leaves distichously arranged, numerous, usually about 1 
m long, 1 em wide or less, folded. Panicles terminal, erect, purple or 
greenish, about 20 cm long, the branches slender, whorled, spreading or 
ascending, 5 to 12 em long. Sessile spikelet about 4 mm long, muricate, 
the awn of the fourth glume very short or none. 
Common in open rather wet lands, banks of rice paddies, etc., mostly 
planted, fl. Aug.—Dec.; widely distributed in the Philippines, but certainly 
introduced. A native of India, now widely distributed in the tropics, 
cultivated and wild. 
