58 xcviii. ACANTHACEiE (clarke). [Physobcanthus. 



2. P. cylindricus, C. B. Clarke. Stems 8-9 in. high. Leaves up 

 to 3 by 1^ in., obtuse at the tip ; petiole J-| in. long, hirsute. Bracts 

 J-|^ in. long, obovate-elliptic, hairy; bracteoles minute. Calyx (young) 

 f by J in., hairy, in fruit | by i in., a little inflated, glabrate. Corolla 

 white {Mann) ; tube 1 in. long ; lobes J in. long. Style with one 

 branch longer, subspathulate. Capsule J in. long, cylindric. 



]bower Guinea. Gaboon : Sierra del Crj-stal, Mann, 1669 ! 1670 ! 



14. HEMIGRAPHIS, Nees ; Benth. et Hook. f. Gen. PI. ii. 1086. 



Sepals 5, nearly separate, subequal, linear. Corolla J-J in. long (in 

 African species), not 2-lipped ; tube nearly linear-cylindric ; segments 

 much shorter, 5, subequal, contorted in bud. Stamens 4, subsimilar ; 

 anther-cells 2, short elliptic, muticous ; pollen globose, subtrigonous, 

 many-ribbed. Style with one branch suppressed ; ovary hairy, with 

 8 or more ovules. Capsule cylindric, seed-bearing from the base, usually 

 perfecting 6-12 seeds; retinacula rather stout, pointed, falcate ; seeds 

 with hygroscopic hairs. — Leaves entire or scarcely crenate. Flowers in 

 small axillary clusters, approximated into quasi-terminal spikes ; bract 

 ovate or oblong ; bracteoles 0. 



Species 20, mostly in India and Malaya, 3 in Africa. 



Leaves scarcely f in. long, elliptic to oblong. 



Spikes 2-4 in. long, many-flowered . . . . \. H. abyssinica. 



Spikes 1-2 in. long, few-flowered . . . . . 2. H. tenera. 



Leaves 2 in. long, lanceolate . . . . . . S. II. Schiceinfurtldi. 



1. H, abyssinica, C. B. Clarke. Pubescent, wiry; branches 4-12 

 in. long. Leaves § by \-\ in., elliptic, entire, subsessile. Spikes 2-4 

 by J in. ; bract \ in. long, elliptic or oblong. Sepals \ in. long, linear, 

 hairy. Corolla hardly exceeding \ in. long, not at all 2-lipped. Stamens 

 4 ; anthers 2-celled (1 cell occasionally imperfect) ; pollen of the genus. 

 Capsule \ in. long, narrowly oblong. — Polyechma abyssinicum, Nees in 

 DC. Prod. xi. 83; A. Rich. Tent. Fl. Abyss, ii. 141. Hygrophila 

 abyssinica, T. Anders, in Journ. Linn. Soc. vii. 22. Cardanthera justi- 

 cioides, S. Moore in Journ. Bot. 1880, 6. 



Wile Xiand. Sennar, Kotschy, 293 ! White Nile, at El Ehs, Schy^einfurth, 972 ! 

 Abyssinia, Schimper ! 



2. H. tenera, C. B. Clarke. Pubescent; branches 8 in. long. 

 Leaves \ by \-\ in., elliptic obtuse, nearly entire, subsessile. Spike 

 J in. long ; flowers 1-2 in each axil ; bract \ in. long, oblong. Sepals 

 \ in. long, linear-oblong, sparsely hairy. Corolla \ in. long, not 2-lipped. 

 Filaments glabrous ; anther-cells short, muticous ; pollen of the genus. 

 Capsule \ in. long, narrowly oblong, 8-10-seeded, seed-bearing from the 

 base. — Dyschoriste tenera, Lindau in Engl. Jahrb. xxii. 116. 



]bower Guinea. Angola : Huilla, Antunes, 132 ! 308 I 



3. H. Schweinfurthii, C. B. Clarke. Pubescent, especially the 

 inflorescence. Stems 6-11 in. high, erect. Leaves up to 2 J by \-^ in., 

 lanceolate, tapering at either end, entire. Flowers in dense axillary 

 and quasi-terminal heads, J in. in diam. ; bracts \-\ in. long, oblong. 



