Stellularia] LXXXIX, SCROPHULARIACE. 175 
Huritia.—An erect annual branched herb, with the habit of Nemia 
or even more like Striga ; stem pentagonal ; leaves opposite, linear- 
lanceolate, blackish green-purple above, herbaceous-green beneath ; 
flowers spicate ; calyx bibracteolate at the base, 4-dentate, the teeth 
long, acuminate, persistent; corolla glossy yellow in prime flower, soon 
turning green, at length in drying black ; the tube rather long, curved 
from the middle up to the 5-cleft limb; the lobes linear, somewhat 
fleshy, rather thick, spreading, four of them more or less approximated ; 
the floral bract embracing the flower at the base, broadly ovate, 
keeled ; the bracteoles linear; capsule 2-valved, cylindrical-oblong ; 
the valves in the apparently immature capsules bifid at the apex ; 
seeds numerous. In a bushy moist pasture near Catumba, plentiful 
but seen only in one locality ; fl. and fr. April 1860. No 5838. An 
annual erect herb, green in the living state, at length turning black ; 
flowers at first purple, at length greenish, black when dry. In 
herbaceous thickets at the Monino; fl. beginning of April 1860. No. 5837. 
22. BUCHNERA I. ; Benth. & Hook. f. Gen. Pl. ii. p. 968. 
1. B. Henriquesii Engl. Bot. Jahrb. xviii. p. 69 (1893). 
HviLLa.—A perennial herb ; root woody ; stems numerous ; leaves 
bright herbaceous-green ; flowers of a very beautiful and very bright 
violet colour, bearing a resemblance to some verbenas. In hilly sunny 
places on a sandy clay soil, near Lopollo, rather rare ; fl. Nov. 1859. 
No. 5833. 
2. B, pallescens Engl., /.c., xxiii. p. 512 (1897). 
MossaMEDES.—An annual, slender, erect herb, herbaceous-green, 
with deep blue flowers. In sandy thickets about the river Bero, very 
rare ; fl. beginning of July 1859. No. 5825. Flowers blue. In sandy 
places among low bushes at the banks of the river Maiombo ; fl. and 
fr. Oct. 1859. No. 5826. 
This species bears some resemblance to B. Henriquesii, and should 
be compared with it; the inflorescence, however, is more elongated 
and laxer. 
3. B. ciliolata Engl., /.c., xviii. p. 69 (1893). 
Hvitia.—A very elegant, annual herblet, scarcely a span high ; 
stem slender, branched from the base or nearly simple; branches 
spreading-ascending, filiform; leaves opposite, linear ; flowers deep 
violet purple, tolerably large for the habit of the plant; corolla 
remarkable for the long broadly linear quite flat lobes of the sub- 
bilabiate deeply 5-cleft limb, the lobes deeply emarginate at the apex, 
the 2 upper ones a little shorter than the rest ; stamens 4, didynamous, 
with reflected anthers. In somewhat spongy pastures flooded by the 
summer rains and then in company with Utriculariw, on the Humpata 
plateau ; fl. beginning of April 1860. No. 5828. 
4. B, andongensis Hiern, sp. n. 
An erect annual herb, branched from the base, more than 8 in. 
high, dusky in the dry state; branches obtusely tetragonal, 
hispidulous-scabrid ; some of the upper internodes exceeding the 
leaves; leaves mostly opposite, obovate-oblong, obtuse or sub- 
apiculate at the apex, wedgeshaped at the sessile or subsessile 
base, trinerved, entire or obsoletely denticulate, herbaceous-green, 
membranous, scabrid, 2 to 3 in. long by } to 1 in. broad; flowers 
whitish, 7 to + in. long, sessile or subsessile, many together, 
