224 CLXXIII. GRAMINE^:. (J. D. Hooker.) [Ariatida. 



cylindric, convolute, acuminate, tip produced into a long 3-partite (very 

 rarely simple) naked or feathery awn twisted below the branches ; palea 

 very narrow, embraced by the gl., sometimes minute or 0. Lodicules 2. 

 Stamens 3. Styles distinct. Grain narrow, free within the closely con- 

 volute gl. Species (assumed) about 100, natives of warm countries. 



The species and synonymy as given below have been revised by Dr. Stapf 

 with the Oriental and African. 



Sect. I. CH.ETAEIA. Awn tripartite from the base, not or imperfectly 

 articulate with the top of the gl., persistent, glabrous. 



1. A. Cuming-iana, Trin. & Rupr. in Mem. Acad Petersb. Ser. VI. 

 vii. (1849) 134 ; annual, dwarf, panicle very slender, spikelets (without the 

 awns) Y^-TO * n -> awn inarticulate at the base. Steud. Syn. Gram. 140 ; 

 Miq. Fl. Ind. Bat. iii. 381 ; Ranee in Journ. Linn. Soc. xiii. (1873) 135. A. 

 capillacea, Cav. Ic. v. 43, t. 468, f. 1 (non Lamk.}-, Steud. I.e. 134. A. 

 delicatula, Hochst. ex A. Rick. Tent. Fl. Abyss, ii. 293 ; Steud. I. c. 139. A. 

 tenella, Kurz in Herb. Calcutt. A. trichodes, Walp. Ann. iii. 753 ; Miq. 

 I. c. 380 ; Steud. 1. c. 140. Chaetaria trichodes, Nees in Hook. Kew Journ. 

 ii. (1850) 101. 



W. BENGAL, Kurz. CHOTA NAGPORE, Clarke. PEGU, Kurz; on the Shan 

 Hills, Collett. DISTEIB. China, Philippines, Afr. trop. 



Stem 3-10 in., tufted, very slender. Leaves filiform. Panicle subcylindrie, 

 narrow, loosely branched, rachis branches and pedicels capillary, scaberulous. Spike- 

 lets green or purplish; gls. acuminate, II longest; III as long as I, scaberulous ; 

 arms of awn twice as long as the gls., capillary, median longest. 



2. A. Adscenscionis, Linn. Sp. PL 82 (excl. Syn. Sloane) ; annual 

 or perennial, panicle contracted, branches short or elongate and naked 

 below, spikelets (excl. awns) i~i in. acute, gl. I acuminate not awned, 



II obtuse or emarginate and mucronate, awn inarticulate at the base. 

 Kunth Enum. PI. i. 190; Steud. Syn. Gram. 139. 



Throughout the Plains and low Hills of INDIA, BURMA and CEYLON, 

 ascending to 8000 ft. in Kashmir. DISTRIB. Most warm countries. 



Stems 6 in. 3 ft., tufted, usually almost filiform, rarely as thick as a crow-quill, 

 smooth. Leaves very narrow, smooth or scaberulous. Panicle 3-12 in., subsimple 

 or compound, rachis and capillary branches nearly smooth ; branches very short with 

 subsessile fascicles of spikelets, or longer, and erect or spreading-. Spikelets pale 

 green or purplish; gl. I - in., acute; II ^-^ in., tip truncate icucronulate ; 



III 5-5 in., smooth or scabrid ; middle branch of awn -|-| in., rarely 1 in. 



Dr. Stapf, who has reviewed the whole genus, informs me that besides the following 

 synonyms, which apply to Old World forms, there are in the New World 11 others 

 under Aristida, and 14 under Chfetaria. 



Var. typica, Stapf. mss. ; gl. Ill about as long as II. A. abyssinica, Trin. 

 Sf Rupr. in Mem. Acad. Petersb. Ser. VI. vii. (1849) 134. A. caerulescens, 

 Desf. Fl. Atlant. i. 109, t. 21, f. 2 ; Kunth I c. 191, Suppl. 146 ; Steud. I. c. 138. 

 JZoiss. Fl. Orient, v. 491 ; DutUe Grass. N. W. Ind. 26. A. canariensis, Willd. 

 Enum. PL 99. A. chsetophylla, modatica, simplicissima & Teneriffae, Steud. I. c. 

 139,420. A. cnrvata, Nees ex A. Rich. Tent. FL Abyss, ii. 392. A. depressa, 

 Retz. Obs. iv. 22 ; Roxb. FL Ind. 5. 351 ; Wall. Cat. n. 3786 ; Kunth. I. c. 190, 

 Svppl. 146 ; Thw. Enum. PL Zeyl. 370 ; Trim. Cat. Ceyl. PL 108 ; Dalz. fy Gibs. 

 Bomb. FL 295; Aitcn. Cat. Partjab PI. 164 (excl. Syn. setacea) ; Benth. Fl. Austral. 

 vii. 5^3; Duthie I.e. fy Fodd. Grass. N. Ind. 47, t. 30. A. divaricata, Jacq. 

 Eclog. Gram. 7, t. 6 (non Willd.). A. elatior, Cav. Ic. vi. 65, t. 589, f. 1 ; Kunth 

 I. c.i. 191. A. festucoides, Hochst. et Steud. ex Trin. 8f Rupr. (non Poi'r,). A. 



