Pogonathemm.'] Grammes. 2 21 



orbicular-ovate, slightly convex, 5-7-veined, with a sub- 

 quadrate wing on each side reaching beyond the acute tip, 

 spines shorter than the glume is broad ; pedicelled spikelet and 

 pedicel reduced to a fusiform, compressed, inflated body as 

 long as the sessile spikelet, acuminate at both ends, green on 

 one face, which is flat, with anastomosing veins, convex on 

 the other face, which is white, membranous, veinless, the 

 green surface forming a keel at the meeting. 



The nature of the organ representing the pedicel and glume of an 

 upper spikelet is not clear to me, whether it is, as Hackel regards it, 

 a mere pedicel sometimes terminated by a minute glume, or a glume I, 

 with a white glume II, the margins of which are confluent with glume I 

 all round. 



Trincomalie (Glenie) ; Jaffna district ; Pallavarayankaddu (Trimen). 



South Deccan Peninsula, Australia. 



2. S. zeylanica, Hack. Mo7togr. Androp. 263 (1889). 

 Ischcemunt falcatum, Thw. Enum. 436. /. zeylanicum, Hack. MSS. ex 

 Trim. Cat. 107. C. P. 3322. 

 Fl. B. Ind. vii. 140. 



Stems 1-2 ft, erect or ascending from a hardened base, 

 slender, compressed, smooth, shining; 1. 3-12 by \-\ in., 

 rather rigidly coriaceous, striate, veins very slender, flat or 

 complicate, surfaces and margins smooth, sheaths of lower 

 1-3 in., strongly compressed, equitant, mouth not auricled, 

 glabrous, ligule very short, membranous; spike 2-3 by \ in. 

 across the spikelets, rhachis straight, internodes clavate, 

 nearly as long as the spikelet or shorter; spikelets i in. long; 

 glume I flat, ovate or oval, subacute or obtuse, 5-7-veined, 

 margined or very narrowly winged at the tip on each side, 

 spines as long as the glume is broad or shorter; pedicelled 

 spikelet as in E. muricata, but veins fewer, and with sometimes 

 a subulate terminal glume. 



South of the Island (Thwaites), Colombo, common (Ferguson), Uva 

 Prov., near Nilligalle (Trimen). 

 Endemic. 

 First found by Mrs. Col. Walker. 



35. FO6ONATHERUHI, Bcauv. 

 Very slender, perennial grasses; stem leafy upwards, 

 branching; 1. narrow, suberect ; spikes solitary on long capillary 

 flexuous peduncles, plumose from the ultra capillary flexuous 

 awns, rhachis at length fragile, internodes short; spikelets 

 very minute, subterete, 1-2-fld., binate, a bisexual sessile and 

 pedicelled neuter male or very rarely bisexual, callus bearded 

 with very long hairs; glumes 3 or 4, all membranous, hyaline, 

 veins very obscure or o, I oblong, truncate, dorsally rounded, 



