300 CLVi. CYPERACEiE (clarke). [PycretLS. 



3500 ft., Scott.JElliott, 5334! Cameroons: Yaunde, 2600 ft., Zenker ^ Staudt, 

 336! 



xrile land. British East Africa: Jur ; Jur Ghattas, Schtoeinftirth, 1462! 

 Buddu district, Scott-Elliot, 7516 ! 



Soutb Central. Congo Free State : Ntenke, Briart ! 



Moxamb. Dlst. German East Africa : Urundi district, 4000-5000 ft., Scott- 

 Elliot, 8182 ! British Central Africa : Nyasaland ; Shire Highlands, Buchanan I 

 Scott-Elliot, 8508 \ and without precise locality, Buchanan, 1452 1 



Also in Bourbon, South-east Asia, Malaya and Australia. 



The species nilagiricus was originally grounded on the black-chestnut colour, while 

 my var. nilagirica includes all the narrow spikeleted heads whatever the colour. All 

 the Tropical African material has narrow spikelets with exactly parallel sides, and 

 is chestnut-brown to chestnut-black. P. hetschuanus differs in the prominent long 

 stolons. The Cameroon plant, issued from Berlin as Cyjperus glohosus, AUioni 

 is exactly the common lorm of C. nilagiricus in India. 



21. P. propinquus, Nees in Mart. FL Bras. ii. i. 7. Stolons 

 Stems 12-18 in. long, rather slender. Leaves nearly as long as the 

 stems, i in. broad. Spikelets 10-16 in one compound head, pale 

 yellow; bracts 3, lowest 3-7 in. long and similar to the leaves. 

 Spikelets J by i in., 20-3G-flowered, compressed, • sides parallel. 

 Glumes ovate, one-coloured, hardly acute, a little inflated. Nut f the 

 length of the glume, obovoid, apiculate, chestnut-coloured, not trans- 

 versely muricate. — C. B. Clarke in Durand k Schinz, Conspect. Fl. 

 Afr. V. 541 ; Durand & Schinz, Etudes Fl. Congo, i. 281 ; Urban, Symb. 

 Antill. ii. 18. P. monocephalus, C. B. Clarke in Durand & Schinz, Con- 

 spect. Fl. Afr. V. 538. Cyperus lanceolatus, Poir. in Lam. Encycl. vii, 

 245 ; Kunth, Enum. ii. 9 ; Boeck. in Linnsea, xxxv. 442 ; C. B. Clarke 

 in Journ. Linn. Soc. xx. 279 and xxi. 42 ; E-idley in Trans. Linn. Soc. 

 ser. 2, Bot. ii. 125 ; not of Presl. C. olfersianus, Kunth, Enum. ii. 10 ; 

 Boeck. in Linnsea, xxxv. 439 ; C. B. Clarke in Journ. Linn. Soc. xxi. 

 62 partly; not Fycreus olfersianus, Nees. C. pycnocephalus, Steud. 

 Syn. PI. Glum. ii. 5. C.Jiuminalis, Ridley in Trans. Linn. Soc. ser. 2, 

 Bot. ii. 127 ; Kendle in Cat. Afr. PI. Welw. ii. lOG. C. flavescens, 

 var. ahyssinica, C. B. Clarke in Journ. Linn. Soc. xx. 279. 



Upper Guinea. Senegal, Perrottet ! Sierra Leone, Scott-Elliot, 5187a I 

 Cameroons : Yaunde, 2600 ft., Zenker Sf Staudt, 335 ! 



Ziower Guinea* Mouth of the Congo, Smith, 62 ! Lower Congo : by the 

 Kiver Ntombi, near Lutete, 1500 ft.. Hens, A, 250 ! 



Soutb Central. Congo Free State, Butaye ! 



Mozamb. Dlst. British Central Africa : Nyasaland; Namasi, Cameron 

 24! 



Also in the Mascarene Islands and Tropical America. 



I can only tell this species from 1-headed examples of P.jlavescens, Reichb., by 

 the nut being perfectly smooth, i.e. without a trace of longitudinal superficial cells 

 (and consequent transveise markings) which mark the nut of B.flavescens. 



22. P. capillifoliuSy C. B. Clarke in Durand d: Schinz, Conspect. 

 Fl. 4/r, V. 535. Annual. Stems tufted, 4-8 in. long, very slender. 



