90 CLXXIII. GRAMINE^E. (J. D. Hooker.) [Cenchru. 



angular, smooth ; involucels loosely imbricate, spines sometimes hooked at the tip, 

 inner -i_i in. long, as long as the sessile spikelets. 



2. C- catharticusj Delile Gat. Sort. Monsp. 1838, in Linnsea xiii. 

 (1839) Litterb. 103 ; base of involucels turbinate or truncate, inner spines 

 squarrosely spreading subulate dorsally deeply grooved, margins ciliate or 

 scaberulous, outer spreading or reflexed. Steud. Syn. Gram. 130 ; PDuthie 

 Grass. N.W. Ind. 9, Indig. Fodd. Grass, t. xi., Fodd. Grass. N. Ind. 15 ; 

 Boiss. Fl. Orient, v. 448. C. aflnnjaris, Anderss. in Peters. Seise Mossamb. 

 Bot. 553. C. echinatus, A. RichTTent.^Fl. Abyss, ii. 389 ; Wall. Cat. n. 

 8654, A.D. Aitchis. Cat. Panjab. PL 163 ; ? Duthie Grass. N. W. Ind. 9 

 (non Linn.}. C. Lapeta. Herb. Ham, ex Wall. I.e. D. C. niloticus, Fig. 

 fy Notar. in Mem. Accad. Torin. (1854), 380. Elymus Capnt Medusae, 

 Forsk. Fl. JEg. Arab. 25 (non Linn.). 



The PANJAB and UPPKE GANGETIC PLAIN, Hamilton, Royle, &c. DISTRIB. 

 Arabia, Afric. trop. 



Quite glabrous. Stem geniculately ascending, branched from the base, leafy. 

 Leaves 1-3 in., lanceolate, finely acuminate, scaberulous ; sheath inflated. Spikes 

 1-6 in., usually more or less enclosed in the uppermost leaf-sheath ; rachis flexuous, 

 smooth j involucels j in. across the spreading spines. Spikelets | in., 1-2-fld. ; 

 gl. I membranous ; II and III hyaline, ovate, acuminate, 5-nerved ; IV ovate- 

 lanceolate, cuspidately acuminate. Resembles Pennisetum cenchroides, but at once 

 recognized by the rigid involucel spines. Duthie's figures under t.im names of 

 capiart.im.s and vnnn^anu.i are not recognizable. The widely distributed C. 

 echinatus, Linn., is very closely allied, but should b'e* recognized by the broader 

 spines of the involucel. I doubt its being distinct. 



16. STENOTAPHRUBI, Trin. 



Coarse grasses. Stem flattened. Leaves distichous. Spikelets spicate, 

 partially sunk in one face of a broad flat herbaceous rachis, usually bise- 

 riate, ovate, acuminate, 1-fld., dorsally flattened, sometimes on short flat 

 appressed branches of the rachis; rachis simple or jointed, tip acute. 

 Glumes 4; I short, broad, rarely ; II convex, empty ; III as long as II, 

 flat, paleate, empty or triandrous ; IV equalling III, coriaceous, bisexual; 

 palea large, ovate, acute, coriaceous. Anthers linear. Styles free. Grain 

 broad, flattened, free within the hardened glume and pale. Species 2 or 3 

 tropical. 



1. S. grlabrum, Trin. Fund. Agrost. 176, Gram. Panic. 60; gl. I 

 very short truncate membranous nerveless. Nees Agrost. Bras. 92 ; Doell 

 in Mart. Fl. Bras. ii. II. 301, t. 39. S. americanum, Schrank PL Rar. 

 Hort. Monac. 98, t. 98, in Flora, vii. (1824) Beib. 27, 28 ; Kunth Enum. 

 PI i. 138; Benih. Fl Aii'stfal. 'vii. 501; Griseb. Fl. Brit. W. Ind. 544. 

 S. complanatum, Schrank in Flora, 1. c. 26 ; Kuntli Enum. I. c. 137 ; 

 Nees I. c. 93 ; Thwaites Enum. PL Zeyl. 361 ; Trim. Cat. Ceyl. PL 106 ; 

 Baker Fl. Maurit. 440. S. dimidiatum, Brong. Bot. Voy. Coq. 127; 

 WigU Cat.n. 1606. S. glabfum, Trin. I.e. 175; Nees I.e.. S. Koenigii, 

 Schrank I. c. S. madagascariense, KuntJi Revis. Gram. ii. 163, t. 211 ; 

 Enum. PI. i. 524, Suppl. 99; Steud. I.e. 118. S. sarmentosum, Nees in 

 Mart. Fl. Bras. ii. 93 ; Fl. Afr. Austr. 63. S. Swartzianum, Nees Fl. Afr 

 Austr. 62. Eottboellia complanata, Sw. in Ges. Fr. Naturf. Berl. Mag. iv. 

 (1810) 89, t. 5 ; Schrank I. c. K. compressa, Beauv. Agrost. 109, t. 21, f. 8, 



