FloSCOpa.] CXLIII. COMMELINACE/E (c'LAUKE). 87 



Schultes, Syst.Veg. vii. 1175. Dithyrocarpus (jlomerams, Kunth, Enurn. 

 iv. 78. 



Xiow^er IS-uinea* Angola : Pungo Andongo ; in wooded marshes at Sobato de 

 Quibunga and near Quilunga, Welwitsch, 6631 ! Huilla ; in Lake Ivantala, about tbc 

 inoutli of the River Moambo, growing 4-10 ft. high, in deep water, Welwitsch, 6590 ! 



IMCoxaxob. Xtist. 1-Jritish Central Africa : on an ishmd at \'ictoria Falls, Kirk ! 

 Nyasaland ; Zomba, Whyte '. 



Frequent in South extratropicai Africa and the Mascarene Islands. 



I doubt if this species can be kept distinct from F. rivularis. 



k). F. ai^illaris, C. B. Clarke in DC. Monogr. Fhan. iii. 2(18. Nearly 

 glabrous, except the inflorescence. Appears to be an annual. Base 

 of stem procumbent, rooting copiously from many nodes, wlience 

 spring clusters of weak stems 2-5 in. long, obliquely erect, very leafy. 

 Leaves J-1 in. long, elliptic or lanceolate, acute. Panicles terminal, 

 and terminal on short axillary branches, pubescent. Ultimate branches 

 of the inflorescence nearly 1 in. long, with numerous small flowers. 

 Pedicels hardly -^^j in. long; bracts at tiieir base -fV "^- long, ovate. 

 Capsule and seeds of the genus. — Dnrand k, Schinz, Oonspect. Fl. Afr. 

 V. 4?>0. F. aquatica, Hua in Bull. Mus. Hist. Kat. Par. i. 122 (from 

 description). Polyyala ao.'illaris, Poir. Encycl. v. 481). 



Upper Cruioea. Senegal, Perrottet, 7711 Sierra Leone, Siveat/nnan! Afzeinisl 

 Guinea, Smith I 



6. P. SchweinfurtMi, C, B. Clarke in DC. Monogr. Fhan. iii. 

 269. A thinly hairy annual. Stems G-8 in. high, erect, repeatedly 

 branched from the base. Leaves 2 by J in., ovafce-lanceolate, sessije. 

 Panicles terminal, more or less leafy, l-2\ in. in diam. ; cymes often 

 1-1{/ in, long, villous, dense with flow erf; ; pedicels 0-,^ in. long. 

 Capsule small, y^ in. long; seeds radiateiy ribbed. — Durand & Schinz, 

 Conspect. Fl. Afr. v. 486. 



xrile l^and. British East Africa : Bongo ; Sabbi, Schweinfurth, 2648 I Kulongo, 

 ScJnoeinfurth, 2672 ! 



7. F. tubereuiata, C. B. Clarke. A thinly hairy annual. Stems 

 G-8 in. high, erect, undivided. Leaves '1\ by i-^ in., oblong, sessile. 

 Panicles terminal, 2 in. long and broad, not leafy, rusty-hispid. Cymes 

 \}i in. long and upwards, dense; pedicels very short. Capsule yV in. long ; 

 seeds apparently coarsely tubercied, the radiating ribs being interrupted 

 by few deep depressions. 



l^oEamb. Hist. British Central Africa : Nyasaland ; Tanganyika IMateau at 

 Fort Hill, Whyte I 



A close ally of F. Schtveivfurthii. 



8. F. flavida,C'. B.Clarke in DC. Monogr. Phan. iii. 209. A slightly 

 hairy, weak annual. Stem lJ-5 in. long, erect, frequently branched 

 from the base. Leaves up to 2J by i in. and linear-lanceolate in the 

 Niger plant, or 2J by J in. and lanceolate in the Djur examples, sessile. 

 Panicles terminal, slender, of few cymes, not leafy; cymes ^— Ij in. 



