Andropogon.] Graminecz. 237 



There are in Herb. Peraden. small, very slender specimens, with very 

 narrow leaves, from rocky places in the Jaffna district collected by Dr. 

 Trimen. 



11. A. caricosus, Linn. Sp. PL Ed. II. 1480 (1762). 



Hack. Monogr. Androp. 567. Heteropogon concinnus, Thw. Enum. 

 368. C. P. 3556. 



Fl. B. Ind. vii. 196. Trin. Sp. Gram. Ic. t. 329 {A. serratus, Retz.). 



Stems erect or creeping below, forming tufts at the rooting 

 nodes, very slender, 12-18 in. high, simple or branching up- 

 wards, internodes channelled on one side, upper filiform, 

 nodes glabrous; 1. 6-8 by tV~6 m -> linear, finely acuminate, 

 flat, glabrous, nearly smooth, margins scaberulous, base 

 rounded, sheaths shorter than the internodes, slender, keeled, 

 mouth not auricled, glabrous, ligules very short; spikes 

 solitary (in Ceylon), about I in. long, pale green, rhachis 

 hardly fragile, internodes much shorter than the spikelets, 

 ciliate; spikelets £ in. long, subsecund, imbricating, lower 3 

 or more pairs awnless, empty or male, upper sessile spikelets 

 I in. long, callus very short, shortly hairy below the middle ; 

 glume I thin, obovoid, obtuse, convex, dorsally glabrous, 

 shining, margins ciliate above the middle, hardly winged, 

 9-11-veined from below the tip, broadly incurved below 

 the middle, II subchartaceous, ovate-oblong, 3 -veined, 

 ciliate, keel smooth, III linear-oblong, obtuse, veinless, 

 eciliate, IV the colourless base of the very slender awn, which 

 is |-i in. long with a scaberulous column, palea o ; lodicules 

 cuneate, retuse ; anth. linear; stigmas slender; pedicelled 

 spikelets male, yV in. long, clavately obovoid; glume I many- 

 veined, ciliate with long hairs, II and III as in the sessile 

 spikelet, but smaller, and III ciliate, IV linear-oblong; grain 

 broadly oval, compressed, pale brown. 



Uva Province. Bibili, in Badulla district (Thwaites). North Central 

 Province, Anuradhapura (Trimen). 



India, Burma, the Andaman Islds., China, Mauritius. 



The Peradeniya Herbarium specimens have all solitary spikes and 

 naked nodes of the stem. In Indian specimens 2-4 spikes occur, the 

 stem is sometimes pubescent above, the upper nodes are bearded, the 

 lower often ciliate, and glume I of the sessile spikelets is hairy all 

 over. The median vein described by Hackel as absent in the glume is 

 often present. Thwaites observes that without careful examination this 

 grass might easily be taken for a species of Apocopis. 



12. A. polyptychus, Steud. Syn. Gram. 380 (1854). 

 Thw. Enum. 367. Hack. Monogr. Androp. 578. C. P. 32. 

 Fl. B. Ind. vii. 198. 



Perennial ; stems densely tufted, 2-3 ft. high, slender, 

 simple, strict, glabrous, nodes villously bearded; 1. 8-16 by 

 -hs~\ in., strict, narrowed from the middle to the finely acute 



