ME. C. B. CLARKE ON INDIAN" SPECIES OF CTPERUS. 105 



4-6 mm., vel in forma G. Wightii minores, admodum compressae, 

 lateribus parallelis ; rhachilla subexalata. Grlumae ovatae, acumi- 

 nata?, mucronatae, naviculares, carinatae, 9-13-nerviae ; nervi rubi- 

 cundi aut pallide brunnei per totam fere latitudinem glumae 

 sparsi ; latera lsete rubicunda, aut saepius pallidiora. Stamina 3 ; 

 filamenta persistentia ; anthera? oblongae fere multicae. Stylus 

 nuce longior; rami 3, e gluma paullo exserti. Nux in planta 

 indica late obovoidea, obtusa, triquetra, in planta canariensi 

 paullo elongata el^soidea (nee conico-acutata), atro-fusca; 

 cellulae extimae quadratae, lucide albidae, persistentes. — Hujus 

 speciei nomen forsan antiquissimum certum est G. Teneriffos; 

 Vahl suum G. rubicundum a Porto Rico receperat ; G. rubicundus 

 autem Kunth in Orbe Nova adhuc non reperta est. 



Teneriffe (Bourgeau nn. 463, 1566, h. Kew, n. 463, h. Mus. 

 Brit. ; Sfc). 



Africa australis (3. BarJcly n. 5812, h. Kew). 



Africa tropica : Ukamba (3ildebrandt n. 2658, h. Kew). 



Abyssinia (Schimper nn. 603, 2340, nee 183, h. Kew, n. 2340 

 h. Mus. Brit.). 



Socotra (Balfour n. 106, h. propr.). 



Madras peninsula (Wight nn. 10, 1817, h. Kew) ; Carnatic 

 (G. Thomson, h. Calcutta); montes Khoonda (Hohenacker 

 n. 1293, hh. Kew, Mus. Brit.). 



Sect. C. Platystachyi. 



Platystachyi, Kunth, Unum. ii. p. 44 (G. arenario addito).— 

 Compressi partim, Boeck. in Linncea, xxxv. p. 505 (sp. aliis 

 additis).— Sorostachys, Stead. Gyp. p. 71 (genus). 



Rhizoma lignosum (nisi G. leucocephalus) . Culmi foliati. 

 Umbella congesta aut capitata. Spiculae admodum compress®, 

 spississimae, stramineaB aut cinnamome33. Glumae ovatae, sub- 

 obtusa?, multinervias. Stamina 3 (1 in C. leucocephalo); filamenta 

 mediocriter ligulata; antherae lineari-oblongae, mutieae. Nux 

 cum §-| part® glumae aaquilonga, obovoidea, obtusa, tngona aut 

 triquetra, interdum inaequalis a dorso compressa. 



This group consists of very similar species easily recognized by 

 the subcapitate inflorescence and the colour. The next group, 

 Bobartia, differs in the woolly roots, the very broad ligulate 

 filaments, and very rigid leaves. It might be more convenient to 

 throw these two small groups into one, distinguished ^^J 

 by the pale colour and subcapitate inflorescence, and divide it 



