Buchnera] lxxxix. sckophulakiace^. 777 



8. B. trinervia Engl., I.e., xxiii. p. 512 (1897). 



PuNGo Andongo.— No notes. In fl. and fr. No. 5883. An erect, 

 annual green herb, somewhat resembling a Lavandula in habit, 2 to .3 ft. 

 high or more ; flowers blue, scentless, as is the whole plant. In sandy- 

 thickets between Luxillo and Cazella, very rare ; fl. Jan. 1857. 

 No. 5885. Leaves linear, opposite ; flowers arranged in dense quad- 

 rangular spikes. In moist meadows at the river Cuanza; fr. May 1857. 

 Coll. Carp. 808. 



9. B. humpatensis Hiern, sp. n. 



An annual, erect, branched, rather slender herb, 9 to 12 in. high, 

 dusky in the dry state, glabrous throughout except small callous 

 scales scattered over some parts; stem angular, usually bright 

 purple-red ; branches opposite or the upper ones alternate, 

 ascending, the flowering ones virgate ; leaves opposite or the 

 upper ones alternate, mostly purplish, lanceolate or subHnear, 

 obtuse or somewhat pointed at the apex, somewhat narrowed to 

 the sessile base, ranging up to 1^ in. long by i in. broad, the 

 lowest ones small, nearly glabrous, sub-entire, the margins 

 minutely crenulate-undulate with cartilaginous-callous scales or 

 teeth and very narrowly revolute ; flowers about |- to ^ in. long, 

 subsessile, arranged mostly in pairs or nearly so, arranged in 

 interrupted pedunculate spikes of 2 to 6 in, in length termi- 

 nating the stem and branches ; bracts broadly ovate, obtuse, 

 concave, adpressed to the calyx |^ to i in. long, glabrous or 

 nearly so; calyx |^ to ^ in. long, slightly mealy-puberulous, 

 tubular, shortly 5-toothed ; the tube campanulate-oblong, some- 

 what costate-angular ; the teeth more or less triangular, pointed, 

 somewhat unequal, much shorter than the tube ; corolla tubular, 

 the tube green, scarcely curved, but little inflated at the base, 

 about as long as the calyx ; the limb rather small, 5-cleft, sub- 

 bilabiate, the segments flat ; stamens 4, didynamous, inserted 

 about the middle of the corolla-tube, all fertile ; ovary 2-celled ; 

 style short ; stigma sub-bilobed, with one lobe nearly obsolete ; 

 capsule coriaceous, 2-celled, 2-valved, about ^ in. long, the valves 

 entire or sometimes emarginate ; seeds numerous. 



HuiLLA. — In the damp pastures of Humpata and Nene, among 

 short grass ; fl. and fr. 19 April 1859. No. 5798. 



Nearly related to B. mossambicensis Kl., but the inflorescence is more 

 interrupted and the flowers smaller. 



The following No. is probably a new species of Buchnera allied 

 to B. dv/ra Benth. : — 



PuNGO Andongo. — No notes. In late fl. Plant 18 in. high, once 

 trichotomous. The leaves are narrowed towards the tip and the calyx 

 teeth are sub-deltoid. No. 5886. 



23. CYCNIUM E. Mey. ; Benth. & Hook. f. Gen. PL ii. p. 969. 



1. C. adonense E. Mey. ex Benth. in Hook. Comp. Bot. Mag. i. 

 p. 368 (1836). 



Pungo Andongo. — A low, densely osespitose herb ; root perennial, 

 woody ; stems numerous, prostrate, ascending ; corolla salvershaped, 

 at first white, soon turning clear blue, at length violet-livid. In the 



