Bintera.] xcn. scrophulariace^ (hemsley and skan). 351 



long. Leaves broadly ovate, semiamplexicaul, acute, recurved at tbe 

 apex, thickened on the margins, 5-nerved, the larger 3 lin. long and 2 

 lin. broad. Calyx in the flowering stage scarcely f lin. long, 1-1 J lin. 

 long when in fruit ; segments 3 times longer than the tube, 1 -nerved. 

 Corolla |— 1 J lin. long ; upper lip somewhat longer than the lower ; 

 lobes all minute. Outer anther-cells almost twice as large as the inner, 

 obovoid, subacute or obtuse at the base. Capsule up to 1£ lin. long. 



Lower Guinea. German South-west Africa : Hereroland ; Waterberg 

 Plateau, in water, Dinter, 568. 



31. HYDEANTHELIUM, H. B. & K. ; Benth. et Hook. f. Gen. 



PI. ii. 957. 



Calyx 4-5-partite ; segments oblong or elliptic or the lateral lanceo- 

 late. Corolla shortly infundibuliform-campanulate, 3-5-fid ; lobes con- 

 cave or cucullate, imbricate, unequal. Stamens 3 to 4, sometimes 2 or 

 5, affixed to the throat of the corolla, exserted ; filaments short ; anthers 

 rather large, 2-celled ; cells parallel. Style dilated at the apex, very 

 slightly 2-lobed. Ovules many. Capsule ovoid or ellipsoid ; valves 

 entire. Seeds many, oblong, incurved, pendulous, striate, caimnculate 

 at the hilum. — Slender hairy or glabrous creeping or prostrate herbs 

 growing in marshy places and on wet rocks. Leaves opposite, sessile, 

 3-7-nerved, entire or crenate at the apex. Flowers small, white, 

 pedunculate in the axils of the leaves, ebracteolate. 



Species 2 or 3, also in Guatemala, Western Tropical South America. 



1. H. egense, Poepp. & Endl. Nov. Gen. Sp. iii. 75, t. 287. A 

 slender pulverulent or more or less pilose herb ; stems up to about 6 in. 

 long, simple or sparingly branched, creeping and rooting at the nodes. 

 Leaves ovate or suborbicular, 4-8 lin. long, 2-5 lin. broad, rounded at 

 the apex, cuneate or sometimes broad at the base, 3-7-nerved, gland- 

 dotted, entire or slightly crenate at the apex. Peduncles 3-7 lin. long. 

 Calyx If lin. long, 4- or 5-partite ; segments unequal, oblong to linear- 

 oblong, obtuse. Corolla 2|- lin. long, unequally 3-5-lobed, fragrant 

 {Barter). Stamens 3 or 4, rarely 2 or 5. Capsule globose-ellipsoid, 

 1-1| lin. long, obtuse. — Benth. in DC. Prodr. x. 425. Herpestis 

 Monnieria, Durand & Schinz, Etudes Fl. Congo, i. 209 (excl. synonymy), 

 not of H. B. & K. 



Upper Guinea. Southern Nigeria : Onitsa, overrunning the muddy margins 

 of streams, Barter, 1252 ! 



South Central. Congo Free State : Congo; at the mouth of the Kasai River, 

 Sens, 119 ! 



Also in Guatemala and Western Tropical South Ameriea. 



