62 CLXXIII. GRAMINEJ:. (J. D. Hooker) [Tliysanolaena. 



short, ciliate. Panicle 1-2 ft., soft, quite glabrous. Spikelet* $ in., pale yellow, 

 rather shining, very obscurely jointed on the pedicels which are jointed on the 

 branches. Myriachaeta glauca, Mor., was founded on the erroneous supposition 

 that its gl. IV was hairless. The spikelets are sometimes viviparous. 



7. CHAIVIAERAPHIS, Br. 



Glabrous marsh or aquatic grasses. Leaves linear or lanceolate. 

 Spikelets 1-2-fid., subsessile and subsecund on the branches of a simple 

 panicle which are produced in an awn-like bristle beyond the terminal 

 spikelet, obscurely articulate on their pedicels, narrowly lanceolate. Glumes 

 4, I very small, truncate, hyaline, nerveless ; II longest, acuminate or 

 narrowed into rigid awn, 5-many-nerved ; III lanceolate acute or aristately 

 acuminate paleate male or neuter ; TV very small, oblong, hyaline, fern, or 

 bisexual ; palea hyaline. Lodicules of male fl. cuneiform. Stamens 3. 

 fttyles free. Grain linear-oblong, compressed^ free within the gl. Species 

 6-6, trop. As. and Austral. 



Besides the spikelets on the branches of the panicle, there are often one or more 

 on the peduncle below the panicle, which are appressed, and sometimes somewhat 

 sunk in a groove of the peduncle. The species are very variable. 



1. C. spinescens, Pair Encycl. ii. 189 ; stems elongate rather stout, 

 panicle pyramidal or contracted, branches with one few or many spikelets 

 each -J in., glume III aristately acuminate many-nerved, IV obtuse. 

 Sf-nih. FL Austral, vii. 499 ; Trim. Cat. Ceyl. PL 106. 0. aspera, Nees in 

 Wall. Cat. n. 8679; Wight Cat. n. 1655; C. paradoxa, Poir. I.e., Kunth 

 Enum. PI. i. 148, SuppL 105. C. spinosa, Beauv. ex Schult. Mant. ii. 253. 

 Panicum asperum, Koen. in Naturf. xxiii. (1788) 209 ; Wight ex Steud. 

 Syn. Gram. 49 ; Thwaites Enum. PL. Zeyl. 4-'6. P. spinescens, Br. Prodr. 

 193; Kuuth Enum. PL i. 131. P. ischsernoides, Heyne ex Wall. I.e. P. 

 squarrosum, Lam. JEncycL iv. 743 ; Kunth Enum. PL i. 131. Andropogon 

 squarrosus, Linn. Herb. Echinochloe squarrosa, Roem. & Sch. Syst. ii. 

 479. Orthopogon squarrosus, Spreng. Syst. i. 307. Setaria longiflora, 

 Desv. Opusc. 81. 



MARWAE; on Mt. Aboo, King. BANDA, DutMe. LOWER BENGAL, Roxburgh, 

 Griffith, &c. SOUTH DECCAN PENINSULA, Heyne, Wight, &c. CEYLON, Ferguson 

 Glennie. DISTRIB. China, Malaya, Australia. 



Floating in much branched masses, with leafy stems 1-3 ft., and panicles 2-4 in. 

 long, varying very much in the number and size of their spikelets. Leaves 1-3 in., 

 and their somewhat inflated sheaths smooth or scaberulous. Spikelets - in. long. 



Var. Brunoniana ; spikelets one or two on the branches of the panicle - in. 

 long. Panicum Brunonianum, Griff Ic. PL Asiat. t. 145 and 139, f. 107. P. 

 (Chamaeraphis) intermedium, and Pseudoraphis Brunoniana, Griff. Notul. iv. 29. 

 Holcus natans, Herb. Hoxb. Lower Bengal, Roxburgh, Griffith.' Tonkin, 

 Australia. 



Var. depauperate ; slender, leaves very short, panicle short contracted, spikelets 

 A in. C. depauperata, Nees in Wight Cat. n. 1654; Steud. Si/n. Gram. 49; Trim. 

 Cat. Ceyl. PL 106. Panicum sordid urn, Thw. Enum. PL Zeyl. 443. Jheels of 

 Bengal, the Deccan and Ceylon. 



2. C. gracilis, Hack, in Engl Sot. Jahrb. vi. 326 ; branches of panicle 

 many simple with many minute spikelets T V- in. long. 



LOWEE BENGAL; Clarke. CACHAR, Keenan. BURMA, Kurz. DISTEIB. 

 Tonkin. 



Stems 6-8 in., decumbent and rooting at the nodes, geniculately ascending, 



