368 The Philippine Journal of Science 1919 
the uppermost sheath scarcely inflated, the rachis rather fragile, 
its joints about 4 mm long, deeply sulcate on one side, the mar- 
gins prominently white-bearded, obliquely cucullate at their tips. 
Spikelets green or green and purple, the sessile ones perfect, Ian 
ceolate, about 9 mm long ; first glume firm, lanceolate, acuminate, 
9 mm long, 2-keeled, the margins inflexed ; second glume thinner, 
7 mm long, acuminate, keeled above and with a slender, 10 to 
12 mm long, apical awn; third glume hyaline, oblong, 5 mm 
long; fourth glume hyaline, 4 mm long, cleft, about 1 mm wide, 
the awn geniculate, about 3 cm long. Pedicelled spikelets lan- 
ceolate, acuminate, about 8 mm long, not awned, their pedicels 
3 to 3.5 mm long, sulcate, margins bearded; first glume lanceo- 
late, acuminate, 2-keeled, usually 7-nerved, the inflexed margins 
ciliate in the upper part; second glume as long as the first one, 
hyaline, 1-nerved ; third and fourth glumes shorter and naiTower, 
the latter subtending a staminate flower. 
Luzon, Ilocos Norte Province, Burgos, Bur. Sci. 3294-6 (type), 
32755 Ramos, July, 1918, growing on open, dry, rocky slopes 
at low altitudes. 
This species is well characterized by its solitary, long-exserted 
racemes and is distinctly anomalous in the section Arthrolepis 
by this character and also by its sulcate rachis-joints and pedi- 
cels; the second glume of the sessile spikelet is long-awned and 
hence the present species cannot be placed in any of the other 
subgenera of the series Isozygi. The sessile spikelets are all 
alike throughout the entire length of the raceme, hence it can- 
not be placed in any of the subgenera of the series Heterozygi. 
So far as I am able to determine it is most closely allied to 
Andropogon longipes Hack., of British India, from which it is 
readily distinguished by its solitary racemes as well as by its 
floral characters. 
ANDROPOGON GRYLLUS Linn. var. PHILIPPINENSIS var. nov. 
Glaberrima, circiter 75 cm alta; foliis 15 ad 27 cm longis, 
5 mm latis; paniculis oblongis 12 ad 15 cm longis, purpureis, 
rachibus ramulisqiie laevis; spiculis lanceolatis, f circiter 6 
mm longis, callo 1.5 mm longo, fulvo-barbato, gluma II breviter 
aristata, arista 2 ad 3.5 mm longa, S lineari-lanceolatis, 5 ad 
6 mm longis, vacuis, gluma II acuminata, vix aristata. 
Panay, Capiz Province, Jamindan, Bur. Sci. 30964 Ramos & 
Edaho, April 10, 1918, on bowlders and ledges in stream beds, 
observed only in this habitat. 
Andropogon gryllus Linn, extends from southern Europe to 
Australia and was recorded from the Philippines by F.-Villar, 
Novis. App. (1883) 316, as Chrysopogon gryllus Trin. The typi- 
