Buchnera| LXXXIX. SCROPHULARIACES. 777 
8. B. trinervia Engl., /.c., xxiii. p. 512 (1897). 
Punco 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. 
Cou. 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 sublinear, 
obtuse or somewhat pointed at the apex, somewhat narrowed to 
the sessile base, ranging up to 1} in. long by 4 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 } in. long, glabrous or 
nearly so; calyx + to 2 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. 
Huiiia.—In the damp pastures of Humpata and Nene, among 
short grass ; fl. and fr. 19 April 1859. No. 5798. 
Nearly related to B. mossambicensis K1., but the inflorescence is more 
interrupted and the flowers smaller. 
The following No. is probably a new species of Buchnera allied 
to B. dura Benth. :— 
Punco ANpoNGOoO.—No notes. In late fi. 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. PI. ii. p. 969. 
1. C. adonense E. Mey. ex Benth. in Hook. Comp. Bot. Mag. i. 
p. 368 (1836). 
Punco Anponco.—A low, densely czspitose herb ; root perennial, 
woody ; stems numerous, prostrate, ascending ; corolla salvershaped, 
at first white, soon turning clear blue, at length violet-livid. In the 
