r'_a- 



152 CLxxiiT. GRAMiNEzE. (J. D. Hooker.) [RottboeUia. 



sessile and both or one only perfect, the other pedicelled imperfect, with 

 the pedicel often adnate to the joint. Sessile spikelets, glumes 4, I 

 coriaceous, flat or slightly convex, obtuse or acute, rarely 1-2-awned; II 

 thinner, keeled; III hyaline, neuter or male; IV hyaline, 1 or 3-nerved, 

 usually paleate, palea usually 2-nerved. Lodicules 2, truncate. Stamens 

 3. . Styles distant. Grain oblong or obovoid, subconipressed dorsally 

 Species about 30, temperate and tropical. 



I have followed Hackel for the most part in the disposition of the species of the 

 first four sections of the genus. For my departure from him in the fifth see 

 reuiarks under Ophiurus (p. 160), 



A, Sessile spikeletg solitary in all the joints of the spike. 



Sect. I. Phacelurus, Hack, Spikes digitately racemed (rarely solitary), 

 rachia fragile, tips of joints flat, not hollowed. Spikelets 2-fld.— Phacelurus, 

 Griseh. (gen.) 



1. S. mTpecio&B,^ Hach, Monogr, Androp, 282; perennial, spikes soli- 

 tary or alternate or subdigitately fascicled 2-3^^ in. long, spikelets ^"4 ^^' 

 1-fId., gl. I flat 11-13-nerved. Ischsemum speciosum, iS^ees ex Stetid. Sp. 

 Gram, i. 375. Andropogon speciosu?, Steud. h c, Vossia speciosa, Benthj 

 in Journ, Linn. Soc. xix. (2881) 70; Duthie Grass. N.W. Ind. 18, Fodd. 

 Grass. N. Ind. 32. 



Western tkmpebate Himalaya, alt. 5500-9000 ft.,from Kashmir to Garwbal, 

 Motfle, &c. • 



Stems tufted, 1-4 ft., stout or slender, simple above. Leaves 6-12 by i-i !"•» 

 I'neflr, hispid or glabrate, margins srabrid ; shcatb glnbrous or margins above haj''?' 

 liffule a ciliate border. Spilces 3-6 in., rarely solitary, glabrous, green or puH^^'*"' 

 joints about as long as the spikelets, subclavate, trigonous, angles ciliate. ^/^'^^ , 

 Ian eolate, glabrous ; gl, I obtuse, tip oblique, margins narrowly inflexed, kee 

 scnbemlous; II navicular, acute ; III lanceolate, 3-5-nerved; IV elliptic-lanceolate, 

 1-nerved, 



Sect. II. Thyrsostachts, Haclc. Spikes panicled, lower whorled, 

 peduncled; racliis fragile, tips of joints hollowed. Spikelets 1-fld. 



2. n. Zea, Clarke in Jmim. Linn. Sor. xxy. (1889) 86, fig. 38; panicle 

 thyrsiform or pyramidal, spikes smaller upwards, spitelets i ^°"J l 

 Fcabrid 1-3-nerved. MacL Monogr. Androp. 690. K. thyrsoidea, EacIC' 

 I. c. 283. 



Khasia Hills, alt. 2-3000 ft., J.D.H. ^T.T.. Clarke. MunneporB, «!*• 

 3500 ft., ClarJce. Uppek Burma ; at Camein on the Mogaung rivtr, Griffith' ' 



Sftm tall, 6-8 ft., very etout, as thick as tbe fortfinger below, erect, simple 

 spariDfily brand»ed, nodes silky. Leaves large, 2-3 ft. by 1-1 J in., linear, fl***^ 

 complicate, glabrous, margins scabrid ; sheaths subconipressed ; ligule short, t^""^^ ' 

 Panicle 10-20 in. long, long-peduncled, rachis very stout, strict. Spikes erecW- 

 patent, lower branched, sometimes distichously ; rachia stout, flexuous or zi&^|*fj 

 joints about ns long as the spikek-ts, subclavate, glabrous. Spikelets glabrous; gl* 

 obtuse, dorsally scabrid, 1-3-nerved, margins narrowly inflexed, keels scaberulous* 

 II ovate, acute, 3-nerved; III lanceolate; IT oblong, obtuse. 



Sect III. Hemakthria, Hack. Spikes solitary or fascicled, com- 

 pressed; joints coherent Or subfragile, tips obliquely or transverseij 

 truncate, not hollowed. Spikelets of each pair similar, pedicel of o 

 ttsaally adnate to the joint of the rachis.— Hemarthria, Br. (Gen.). 



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