Cladium.] OLXXII. OTPBRAC.BJS* (C. B. Clarke.) 675 



WEST AUSTRALIA. 



Stolons long, densely clothed by lanceolate striate dirty-straw-colrd. scales. 

 Stems 3 ft., trigonous, under panicle flattened biconvex. Basal leaves often as long 

 as stem, hardly in. broad ; in their upper half very variable in form, sometimes 

 xiphoid (i.e. flat thick in middle without a central nerve), sometimes 3-i-angular or 

 passing into nearly linear-conic. Panicle 8-12 in. ; lower branches distant ; lowest 

 bract 1J in. long ; secondary branches flexuose, minutely scabrous-puberulous. 

 Spikelets in clusters of 1-5, | in. long, 2-1-fld., brown ; lowest flower perfect, nut- 

 bearing. Fl. glume ovate-lanceolate, at least as long as the two lower empty glumes. 

 Nut T ' K in., sessile, brown; beak 5 nut. 



Var. crassa ; stems usually 6 ft. ; spikelets rather larger, densely clustered, 2-4 

 flowers and 1-3 nuts ; styles and filaments conspicuously exserted. Baumea crassa, 

 Thw. Enum. 353; Boeck. I.e. 238. BENGAL; Soondreebun, 0. JB. Clarke. KHASIA, 

 alt. 5000 ft., Shillong, C. -B. Clarke (introduced ?). Ceylon ; Prov. Ambagamowa, 

 Thwaites, C.P. 845. In the Ceylon examples (crassa type), with which the Bengal 

 agree, the roots are thick black (the plant probably not stoloniferous), the nuts are 

 nearly twice as long as in the Australian plant shining brown. But in the Khasi 

 plant, stolons are generally present and the nuts are like those of C. riparium, Benth. 



typ- 



5. C* glomeratum, Br. Prodr. 237 ; medium-sized, leaves linear in 

 upper half terete or subtrigonous not transversely septate, panicle elongate 

 narrow interrupted, spikelets clustered, style 3-fid, nut oblong-ellipsoid 

 obtusely trigonous, beak small ovoid hairy. JKunth Enum. ii. 304; Benth. 

 Fl. Austral, vii. 404 (not Baumea glomerata, Gaud.). Chapelliera glo- 

 merata, Nees in Lehm. PI. Preiss. ii. 76 in Obs. ; Miq. in Ann. Mus. Lugd. 

 Bat. ii. 146. Baumea rubiginosa & Brownei, Boeck. in Linnsea, xxxviii. 

 241, 242. 



SINGAPORE, Ridley. DISTKIB. China, Japan, Austral., and N. Zeal. 



Stolons long, clothed by ovate striated scales. Stems 1-3 ft., nodose throughout 

 their length. Basal leaves 8-20 in., cauline few short or 0. Panicle 4-10 by 

 1-2 in. ; lowest bract -! in., hardly leaf-like. Spikelets 1-3 together (clusters 

 often themselves clustered), | in., rusty-brown, 2-4-fld. bearing 1 (rarely 2) nut. J7. 

 glumes ovate acute, keel upwards scabrid, margins conspicuously thinly villous. 



17. XKXCROSCHCENUS, Gen. Nov. 



A very small, glabrous perennial. Stems with nodes, bearing narrow 

 leaves. Inflorescence of 1-3 approximated spikelets. Glumes 6, imbricate 

 on all sides, subsimilar ; two lowest empty ; 3 (or 2) following male, mon- 

 androus ; uppermost lateral (appearing terminal) perfect, nut-bearing, 

 monandrous. Hypogynons bristles 2, minute, rudimentary (perhaps re- 

 duced stamens). Style linear-cylindric, smooth, continuous with pistil; 

 branches 3. Nut (not well ripe) ellipsoid, trigonous, smooth, pyramidal 

 at base and top. 



XVI. Duthiei, C. B. Clarice ; stems 1-3 in. 



WEST HIMALAYA ; Gurwhal, Tihri, alt. 15,500 ft., Duthie. 



Stems tufted ; with very short stolons or short lateral shoots. Leaves 2 or 3 on 

 each stem, about 1 in., grass-like ; margins incurved, smooth ; sheaths short. Spike- 

 lets about % in., ellipsoid ; lowest bract similar to leaves ; upper bracts gradually 

 shorter, passing into glumes. Glumes ovate-oblong, concave scarcely keeled, chest- 

 nut-red, hardly scarious on edges. Anthers linear-oblong, not crested, scarcely 

 exserted. 



x x 2 



