Andropngon.] CLXXIII. "GE AMINES (J. D. Hooker.) 165 



them as genera, especially CJirysopogon, Cymbopogon and Heteropogon ; and 

 his section Pseudanthistiria of subgen. Hypoginium, should certainly rank as a. 

 genus closely allied to Anthisiiria. The following is Hackel's grouping : 



Scries I. ISOZYGI. Sessile spikelets of all the pairs alike in sex and form 

 throughout the spikes. 



* Peduncle of spikes enclosed in spathiform leaf -sheaths. 



f Joints of rachis and pedicels of upper spikelets clavate or trumpet-shaped, top 



cupular with toothed margins. 



Spikes solitary on the peduncle. 



Podicelled spikelets smaller than the sessile ... 1. SCHIZACHTRIDM. 



Peduncled spikelets larger than the sessile . . . .2. DIECTOMIS. 



Spikes 2 or more on the peduncle ..... 3. ARTHROLOPHIS. 



ff Joints of rachis and pedicels of upper spikelets slender, 



top obliquely truncate cupped or not .... 4. HYPOGYNITTM. 



** Peduncles of spikes not enclosed in spathiform leaf- 

 sheaths ; joints of rachis slender. 



Joints of rachis and pedicels of upper spikelets linear com- 

 pressed with usually a central translucent channel and 

 thickened margins 5. AMPHILOPHIS. 



Joints of rachis very few, filiform, opaque; lodicules ciliate ; 



grain dorsally compressed 6. SORGHUM. 



Joints of rachis many, stout or slender, opaque ... 7. VETIYERIA. 



Joints of rachis few ; spikes articulate on the obliquely 



truncate bearded tips of the branches of the panicle . 8. CHRYSOPOGON. 

 Series B. HETEROZYGI. Lowest one or more sessile spikeleta dinering from all 



those above it in sex or form. 



Spikes many (rarely 1 or few) on the peduncle digitate, 



sessile spikelets dorsally compressed .... 9. DICHANTHIUH. 



Spikes binate on the peduncle which is enclosed in a spathi- 

 form sheath ; sessile spikelet dorsally compressed . '. 10. CYMBOPOGON. 



Spikes solitary, lower pairs of spikelets very unlike the 



upper; upper sessile spikelets cylindric . . .11. HKTEROPOGON. 



Subgen. I. SCHIZACHYEJUM, Benth. Spikes solitary ; peduncle in a 

 spathiform leaf-sheath ; joints and pedicels clavate orbucciniform, mouths 

 broad cupular irregularly toothed. Sessile spilcelets dorsally compressed, 

 callus short ; gl. I keeled ; II not awned ; IV hyaline, 2-fid, awned in the 

 cleft. Pedicelled spikelets usually small, imperfect and withering. 



* Annuals. 



1. A. brevifolius, Sw. Prodr. Veg. Ind. Oc&. 26, FL Ind. Occ. i. 

 209 ; glabrous, stems slender straggling much branched leafy, leaves 

 divaricate linear obtuse or subacute, spathes very narrowly linear sprea<i- 

 ing, spikes glabrous or sparsely hairy. Kunth Revis. Gram. ii. 563, 

 1. 196, Enum. PI. i. 488, Suppl. 399 ; Steud. Syn. Gram. 366 ; Hack. Monogr. 

 Androp. 363 ; $ in Mart. FL Bras. ii. 111. 302 ; Benth. Fl. Hongk. 423 ; 

 Duthie Grass. N.W. Ind. 19, Fodd. Grass. N. Ind. 34; Griseb. FL Brit. 

 W. Ind. 538. A. debilis, Kunth 1. c. A. flaccidus, A. Rich. Tent. FL 

 Abyss, ii. 452. A. floridus, Trin. in Mem.Acad. Petersb. Ser. VI. ii. (1833) 

 265. A. fragilis, Br. Prodr. 202; Kunili Enum. I.e. A. obtusit'olius. 

 Poir. Encycl. Suppl. i. 583. A. parviflorus, Hoxb. Fl. Ind. i. 274. A. 

 tenellus, Presl Rel. Hsenk. i. 335. Pollinia fragiHg & brevifolia, Spreng, 

 Syst. \. 288, 289. P. vaginata, Spreng. Pugill. ii. 11. Schizachyrium, 

 brevifolium, Nees Agrost. Bras. 332. Andropogon, Wall. Cat. n. 8824-5- 

 6. Batratherum, Wall. I.e. n. 8827, 



TROPICAL HIMALAYA, from Kumaon to Sikkim, BEHAR, CENTRAL INDIA, 



