304 CLXxiil. GUAMiNEJl. (J. D. Hooker.) [PhragmHei. 



P. pumila, GHsehAn Ooett. Nachr. (1868) 76 {an Willi:.?). ^ P. vul^arw. 

 Trtn. Fund. Agrost 134. Arundo graeca, Link in Linnsea, ix. (1834)136. 

 A. maxitDa, Forsh, Fl ^g. Arab. 24. A. Phragmites, Linn. Sp. PL 81; 

 Host Gram. Avstr. iv. 23, t. 39; Engl. Bot. t. 401 ; Knapp Gram. Britt. 

 t. 95; Ledeh FL Poss. iv. 393 ; Aitchls: Cat. Panjah PL 266. ?A. tecta, 

 Blanc. FL Philipp. ^8. A. vulgaris, LamJc. FL Franc, iii. 615. Czernya 

 arundinacea, Presl Cyp. ^ Gram. SiciL 22. 



Kashmir Lake, nit. 5-6C00 ft., Jacqvemonf, &c. GarWHAL. alt. 4-5000 ft., 

 Duihie. Western Tibet, alt. 9-10,000 ft., Thomson, &c,— Uistbib. ^. and 

 S, temp, regions. 



Stem erect from a stout creeping rootstock, leafy up to the panicle, nstular. 

 Leaves distichous, linear to broadly lanceolate, tip subulate, base rounded, not 

 amplexicaul; Hgule a ridge of short liairs. Panicle usually brownish V^J"^^'* 

 branches very slender, smooth, hairy ; ppduode often silkily hairy at the very base 

 of the pfUiicJe, sometimes densely. Spikelets ^-J in.; gls. spreading in "t. 'laa 

 eip*>singthe long silky hairs of the racliilla, I and II longer than the flg.— Very 

 variable ; in dry situations in Tibet and Sciud the stems are very short, strapgUng, 

 with ovate-subulate concave rigid pungent leaves 1-2 in. lonj?, and a reduced panicle. 

 This starved state is the Cenchnts fnitescen.s, Sieb. in Bot. Zeit. ix. (^f^^y V 

 P. pumila^ Griseb., is another reduced couditioa of P. communis, from Tibet, m w ic 

 gl. Ill is as short as in P. Karha. Grisebach in Goett. Nachr. (1868) 76, has ai^ 

 var. isiaca (P. isiaca, Eeichh.) as a native of Tibet. I have not seen his specimeus, 

 but neiiher Dr. Stapf nor I can find a valid character for this variety in European 

 specimens. 



2. P. Karka, Trin. ex Stevd. Norn. Ed, ii. 324; stems very tall stoat 

 and leaves perennial, panicle \-2 ft. erect, branches widely 8i)reading, *^'' ' . 

 rarely more than \ in. P. Roxburghii, Steud. I. c. ; l^ees in HJov. Act M^- 

 Gut. xix., SuppL \. (1843) 178; TInvaites Enum. PL Zeyl 370; Tnn-^^^^- 

 CfyLPL 109; Berith.FLHongk. 428; Dutkie Grass. N.W. Lid. i.Sb.foaa. 

 Grass. N. Lnd. 60 ; Franch. 4' Sav. Emim. PL Jap. ii. 1 70 ; Lisboa in Jovriu 

 Bomb. Nat. H!st. Soc. vii. (1893) 378. P. bifaria, Wight lierb d. i-^^^^ 

 P. nepalensis, Nees ex Steitd. Syn. Gram. 196. Arun(^o Karka, Retz. yo- 

 iv. 21; Roxb.FL Ind. i. 348. A. Koxbnrghii, Kimth Eevis. Gra^-^^- ^^^ 

 Enum.Pl. i. 248; Griff. NotuL iii. 47, Ic. PL Asiat. t. 1-^9. f- ^^W'p.f/ 

 Roxbnrghiana, Knnth ex Steud. Norn. he. A. tibialis, Boxh. l^"^ ^^)j 

 (ined.\ t 854, Sf in WalL Gat n. 5017 G. A. Donax, Herb. Ham. ex Wau- 

 I.e. B. A. Corea, Herb. BottL Oxyanthe japonica, Steud. J-^' Ai' 

 Sericura japonica, Steud. in Flora, xxix. (1846) 20. Trichoon Karka, no ^ 

 Catalect. ii. 2.-Arando, Wail. Cat. n. 5017, 5018 F., 5019.-Aranao. 

 Griff. L c. 48. 



Throughout India ; from the Pu.jab to Burma, and southward to Ceylon, **^^V 

 ing the Himalaya in hot valleys to 3000 ft. — DisiKiB. Atfghan., Japan, Irop. 

 Africa, «nd Australia. |ig|. 



^ Except by its greater size, larger more spreading panicle with ''**^ ^^/j,.j(.ter 

 spikelets, more spreading glumes, and shorter gl. Ill, I can point out no ^^^^^^^^^^ 

 whereby herbarium specimens of P. Karlca can be distinguished from P- com ^.^^^ 

 and none of those are constant. In both dwarf or very slender states "^'^" f^ny 

 almost filiform leaves and greatly reduced panicles. Dr. btapf, who has ca^^ .^ 

 revised my separation of the great pile of Indian specimens into the two ^P^^^^^' ^ 

 e<|ually at a loss to point out any other characters than those given above ^^^ ^^^\^i 

 distingui>h them, except that the rachilla appears to him to be rather ^^^^j^^^p^i 

 more slender in P. Karka and the glumes heuce more widely apart; and ^"^ ^^'^^.j-.^ 

 also are rather narrower. The perennial duration of the stems and leaves of -^'^ ^ ^f 

 requires verification. These organs are undoubtedly anuual in the northern 



