622 CLXXII. CTPERAOE^I. (C. B. Clarke.) [Mariscus. 



the spikelet ; the nut is formed as usual in the 3rd glume, the rhacheola above its 

 base is exceedingly short, while the 4th glume (usually containing a barren flower) 

 is well developed. The ripe nut thus is contained apparently by the 3rd and 4th 

 glumes, not by the 3rd glume and the rhacheola. 



6. IK. tenuifolius, Schrad. in Mart. Fl. Bras. ii. (pars 1)46 ; stolons 

 slender, umbel simple contracted, spikes solitary cylindric or ovoid loose, 

 spikelets usually bearing 2 nuts dusky-green ultimately suberect. C. 

 umbellatus, Thiv. Enum. 345 (partly). C. umbellatus, var. laxata, C. B. 

 Clarke in Journ. Linn. Soc. xxi. 201. Mariscus, Wall. Cat. 3432. 



DECCAN PENINSULA, Wallich, &c. MONGHIE, Wallich. MALACCA, Griffith, 

 Kew, n. 6241. 



Stolons scarcely V in. in diam., clothed by lanceolate striate scales. Stems 

 slender. Leaves very narrow. Rays of umbel 0-1 in. Spikelets bearing 1-3 

 (mostly 2) nuts. From the stolons this plant is usually mixed with H . paniceus, 

 but from the structure of the spikelets it must be more closely allied to M. pictus. 



7. IMC* Sieberianus, Nees in Linnesa, ix. 286 ; rhizome short, umbel 

 simple, bracts 5-10, rays 5-12 up to 1-4 in. ultimately straight, fruiting 

 spikes exactly cylindric, fruiting spikelets linear-lanceolate (or lanceolate) 

 bearing 2-1 rfuts dense yellow or pale divaricate on all sides at right ' 

 angles, nut linear-oblong or oblong (cf. the 3 vars.). M. umbellatus, VaJil 

 Enum. ii. 376 (partly] ; Nees in Wight Contrib. 90 (chiefly) ; Kunth Enum. 

 ii. 118 (chiefly) ; Strachey Cat. PI. Kumaon, 74 ; E. T. Atkinson Gaz. x. 

 [1876] 622'; Dalz. & Gibs. Bomb. Fl. 285. M. cyperinus, Nees in Wight 

 ^Contrib. 90, var. a (& var. |3 partly, i. e. plant of Sieber) ; Royle III. 

 412. M. paniceus,' Strachey, 74; E. T. Atkins. 1. c. 622. Scirpus 

 cyperoides, Linn. Mant. 181. Kyllinga umbellata, Roxb* Fl. Ind. i. 182 

 (scarcely of Rottb.). Cyperus umbellatus, Miq. in Ann. Mus. Lugd. Sett. 

 ii. 142. C. umbellatus, var. a (partly} & e, C. B. Clarke in Journ. Linn. 

 Soc. xxi. 201. C. ovularis, Boeck. in Linnaa, xxxvi. [1869-70], var. a 

 (partly, not of Torrey). C. cylindrostachys, Boeck. I.e. 383 (chiefly). C. 

 Steudelianus, Boeck. in Engler Jahrb. v. [1884] 91. Mariscus, Wall. Gat. 

 3437 (mainly). 



From NORTH-WEST HIMALAYA, alt. 0-6000 ft., and. ASSAM to CEYLON and 

 SINGAPORE. DISTEIB. Warm regions of Old World. 



Glabrous. Stems l-2 ft. Leaves often nearly as long as stem, |-i in. broad, 

 rather weak. Umbel 1-5 in. in diam ; rays ultimately very straight (not curved as 

 in M. cyperinus). Spikes solitary (see, however, var. 7), often 1 by in. ; bracteoles 

 inconspicuous. Spikelets sometimes 1- sometimes 2-fld., varying in length accord- 

 ingly. Nut trigonous, chestnut-colrd., f-f length of glume. M. umbellatus is 

 Kyllinga umbellata, Kottb. Descr. et Ic. 15, t. 4, fig. 2, a plant abundant in Africa 

 and very close to M. Siberianus, but has smaller shorter more bracteate spikes, 

 fuscous-green when ripe. 



Var. ]3 evolutior ; spikelets linear bearing 2-4 nuts. M. corymbosus, Boeck: in 

 Flora, xli. 409 ? Cyperus umbellatus, var. e cylindrostachys, C.B.Clarke, Journ. 

 I. c. 201 (chiefly). C. biglumis, C^-B. Clarke I. c. 199 (partly), (scarcely Mariscus 

 biglumis, G-aertner). Throughout India (except ivladxa^ ?). DISTRIB. Tropics. 



Var. 7 subcomposita ; spikes often digitate on the rays bracteolate. M. biglumis, 

 Gaertn. Fruct. i. 12, t. 2, fig. 8; C. B. Clarke I. c. 199 (partly). Kumaon, alt. 

 5000 ft., Strachey. MADRAS PENINSULA (?), Wall. Cat. n. 3437 E. Japan, Poly- 

 nesia. Rheede Hort. Mai. xii. 119, t. 63, usually brought here differs by the spikes 

 not exactly cylindric, the spikelets not spreading at right angles ; and is, perhaps, 

 M. cyperinus drawn a little too large. 



