1<>0G CXLTII. On.VNflXE.T:. 



lower invol. -glume \ in. long, ovate-lanceolate, subacute, 3-nerved ; 

 upper invol. -glume ^ in. long, oblong-lanceolate, 3-nerved : lower floral 

 glume nearly | in. long, male, lanceolate, acuminate, interruptedly 

 7-nerved, with a linear-lanceolate palea ^ in. long ; upper floral glume 

 ^ in. long, 2-sexual, densely hairy on the back above the middle with 

 very slender hairs nearly ^ in. long, 2-lobed, the lobes lanceolate, acute, 

 aristate, each lobe 3-nerved, -^ in. long with an awn § in. long from the 

 sinus ; palea lanceolate, acute, | in. long. Fl. B. I. v. 7, p. 272 ; 

 Woodr. in Journ. Bomb. Nat. v. 13 (1901) p. 440. Tristachya SiocJcsii, 

 Boiss. Fl. Orient, v. 5 (1881) p. 552. 



Si\D : Stoc/,-s, 1217 ! and 648 ! — Distrib. Arabia, Nubia. 



39. THYSANOLuBENA, Nees. 



A large glabrous reed-like grass ; stems solid. Leaves broad, flat. 

 Spikelets innumerable, very minute, 1 -flowered, joinfed on very short 

 pedicels and subsecund on the very numerous crowded, long, Aliform, 

 compound, suberect branches and branchlets which form a very large 

 effuse pyramidal panicle ; rhachilla produced but not beyond the floret. 

 Glumes 4 ; invol. -glumes small, concave, awnless, faintly nerved or 

 nerveless; lower floral glume rather longer than the upper, empty, 

 acuminate, epaleate ; upper floral glume ovate, acute, ciliate with long 

 erect white hairs ; palea short, truncate. Stamens 2-3 ; anthers short. 

 Styles free. Grain very minute, free wdthin the hardened glumes. — 

 DiSTEiB. Tropical Asia; species 1. 



1. Thysanolaena Agrostis, Nees, in Elitih. N. Phil. Jouni. v. 18 

 (1835) p. 180. A large handsome grass ; stem 4-12 ft. high, reaching 

 sometimes | in. in diam., glabrous, polished. Leaves very large, 1-2 ft. 

 by 2-4 in., coriaceous, linear-lanceolate, tapering to a fine point, many- 

 veined, base cordate ; sheaths glabrous, striate, liairy at the mouth ; 

 ligule small, ciliate. Panicle large, 1-2 ft. long, soft, glabrous; branches 

 very numerous, suberect, filiform, w^ith many short branchlets carrying 

 small spikelets. Spikelets y^o'-rV ^^^- ^*^^^S' ovoid-lanceolate, acuminate, 

 pedicellate ; rhachilla produced into a linear-lanceolate point about J^ in. 

 long. Glumes 4 ; invol.-glumes less than ^^ in. long, subequal, about | 

 as long as the floral glumes, ovate, subacute, hyaline, obscurely 1-nerved ; 

 lower floral glume longer than the upper, lanceolate, acuminate, mem- 

 branous, glabrous, epaleate, empty, 1-nerved ; upper floral glume ovate- 

 lanceolate, acuminate, ciliate with long white erect hairs. Fl. B. J. v. 7, 

 p. 61; Woodr. in Journ. Bomb. Nat. v. 13(1901) p. 434; Prain, 

 Beng. PL p. 1172. TJu/sanoloma acarifera, Arn. tfe Nees, in Nov. Act. 

 Cur. v. 19, Suppl. 1 (1843) p. 181; Duthie, Fodd. Grass. N. Tnd. 

 (1888) p. 21 ; Watt, Diet. Econ. Prod. v. 6, part 4, p. 48.— Flowers : 

 Jan. Vern. Barucha. 



Konkan: Th&nn, Tyifhon. Deccan: Klianflesli, Lisboa; Dangs, Woodrow; Nasik, 

 Lisbon. GaJAUAT: Bansda (Siirat disti-icls), Jroorfrow. — Distrib. Throughout India; 

 Penang, eastwards to New Guinea. 



40. PHRAGMITES, Trin. (ex parte). 



Tall perennials with a creeping rhizome ; stem stout, hollow, leafy 

 upwards. Leaves long, flat. Panicle lax, usually very largo and 



