76 XIV. COMMELINACE/E. [Cotmmlina 



angled, more or less semicylindrical. Leaves somewhat shining above, 

 paler beneath, striately nerved on both faces. Spathe shortly-stalked, 

 broadly cordate when opened out, acuminately falcate, green, mouth 

 ciliate ; pedicel 4-flowered, 2 upper flowers ? , the third apetalous 

 3-androus, the lowest and fourth generally aborted. Sepals whitish,, 

 membranaceous, very thin, sessile, somewhat obtuse, unequal, more or 

 less ovate-acuminate ; petals a rather dark yellowish-chesnut, conchi- 

 form with crisped-folded mouth. Flowered in cultivation at Lisbon, 

 Sept. 18G1. No. 6587. 



4. C. benghalensis L., I.e.; C. B. Clarke, I.e., p. 159; Durand 

 & Schinz, I.e., p. 424. 



Loan DA. — A herb, apparently annual, root with long fibres, branches 

 ascending. Flowers pale blue, rather small. On coarse iron sand- 

 stone cliifs behind the city ; not seen elsewhere. In fl. Feb. 1854. 

 No. 6621. 



Cazengo.— Dec. 1854. No. 6611. 



GoLUNGo Ai/ro. — Flowers blue, stem divaricately branched, often 

 rooting at every node, or growing on tree-trunks and hanging like a 

 whip, always softly villose. In rather damp once cultivated places,, 

 and in gardens among herbs, sometimes on rotting trunks. Near 

 Bango, July 1855. No. 6598. 



PuNGO Andongo. — Annual, or perhaps perennial, stems procumbent 

 and rooting, ascending when in flower, leaves pale green, roughly 

 setulose. Flowers small, blue. Sepals obovate-circular, the posticous 

 smaller ; the two upper long-clawed petals spathulate with a concave- 

 conchiform blade with denticulate margin. Spathe rather small, almost 

 triangular in outline, upper margin truncate. Plentiful in a few places 

 on shaded rocks in thickets on the huge rocks of the prtesidium. The 

 leaves of the specimen are smaller than usual owing to want of rain. 

 In fl. and fr. April 1857. No. 6646. 



HuiLLA. — Flowers blue or bright blue. Sparsely shaded rather 

 damp pastures of Morro de Monino. Feb. 1860. No. 6582. 



Var. hirsuta 0. B. Clarke, I.e., p. 160; Durand & Schinz, I.e. 



Loanda. — A climbing herb, 3 to 5 ft. and longer, stem angled,, 

 roughish ; flowers smaller than usual, deep azure blue. Thickets of 

 Alto das Cruzes. In fl. Feb. 1858. No. 6622. 



5. C. afrieana L., I.e. 



Var. Krebsiana C. B. Clarke, I.e., p. 164 ; Durand & Schinz, I.e., 

 p. 423. 



PuNGO Andongo. — A slightly succulent herb, with prostrate radiat- 

 ing shoots and yellow flowers. Secondary thickets between Catete and 

 Quilanga. In fl. Jan. 1857. No. 6635. A perennial herb with fleshy- 

 tuberous roots ; prostrate-ascending. Flowers yellow. Thicket-grown 

 pastures between Pungo Andongo and the river Cuanza ; found 

 occasionally. In fl. middle of Nov. 185G. No. 6640. 



Var. polyclada C. B. Clarke, I.e., p. 165 ; Durand & Schinz, I.e. 

 C. ■pobjclada Wehv. ex C. B. Clarke, I.e. 



Huilla. — Leaves bright grass-green ; flowers small, yellow. Culti- 

 vated fields near Lopollo. May 1860. No. 6581. 



6. C. barbata Lam. Tab!. Encycl. i. p. 129 (1791) ; C. B. Clarke, 

 I.e., p. 166 ; Durand & Schinz, I.e. 



