778 LXXXIX. SCROPHULARIACE^. [C jJCIlium 



course of drying the stems and leaves also become tinged with a livid 

 bluish colour. In sandy wooded places near Cazella, seen nowhere 

 else in the district; fi. 18 Oct. 1856. No. 5868- 



HuiLLA. — A perennial herb ; stems several ; leaves herbaceous- 

 green; flowers milk-white, soon turning a livid-violet colour, at length 

 when dry blackish. In pastures among low bushes near Lopollo, very 

 rare, fl. Feb. 1860. A handsome form with leaves ranging up to 3jin. 

 by H in. broad and flowers up to 4 in. long. No. 5779. 



24. RHAMPHICARPA Benth. ; Benth. & Hk. f. Gen. PI. ii. 969. 



1. R. fistulosa Benth. in DC. Prodr. x. p. 504 (1846). 



R. longiflora Bentli. in Hook. Comp. Bot. Mag. i. p. 368 (1836), 

 partly; not in DC, I.e. Macrosiphon Jistidosus and M. elongatus 

 Hochst. in Flora, xxiv. p. 374 (1841). 



PuNGO AxDOXGO. — An annual herb, 1 to 2 ft. high, at first erect, 

 afterwards especially when in fruit decumbent or ascending, in the 

 living state yellowish-green, quickly turning black in drying : flowers 

 whitish-rosy. In swampy places among Cyperace;e, at the banks of 

 the river Cuanza, near Cavallo, plentiful : fl. and fr. 31 Jan. 1857. 

 No. 5889. In Mata Lucala ; fl. and fr. No. 5889^. Without fl. or 

 fr. Dec. 1896. No. 5862. 



2. R. angolensis Engl. Bot. Jahrb. xviii. p. 74 (1893). 

 HuiLLA. — An annual erect asperulous herb, 2 to 3 ft. high, branched 



above ; stem obtusely tetragonal, mostly purple ; leaves strictly and 

 everywhere opposite, bipinnately laciniate, all the segments Imear 

 and as well as the stem and calyces beset with hyalme somewhat 

 rigid and glandular hairs ; flowers bibracteolate ; calyx elongate- 

 campanulate, herbaceous-green ; the 5 teeth elongated, spreading, 

 linear, persistent ; corolla milk-white, rosy at the throat and in the 

 tube, the whole soon turning bluish, at length blackisb, almost 

 salvershaped ; its tube slender, much longer thau the calyx, gibbous 

 in the middle on the upper side in consequence of the turgidity of the 

 anthers ; the limb 5-cleft, bilabiate : the lobes obovate, the 2 upper 

 ones ascending and a little shorter than the 3 lower ones which are a 

 little larger and spread downwards or stretched forwards as in some 

 species of Mimulas ; stamens 4, inserted on the corolla-tube a little 

 above its base, included, but little didynamous ; filaments bearded ; 

 anthers unilocular with an evident tendency to the formation of a 

 septum : style quite simple, subfiliform, but little thickened in the 

 middle, subulate at the apex and there very delicately papillose- 

 stigmatose ; young capsule obliquely horned, bilocular ; placentas 

 united ; young seeds like sawdust in shape. On a clay soil in bushy 

 places and thickets sprung up after neglected cultivation, on the right 

 bank of the Lopollo river, rather rare ; fl. at the end of March, fr. at 

 the beginning of May 1860. No. 5780. 



25. STRIGA Lour. ; Benth. & Hook. f. Gen. PI. ii. p. 968. 



1. S. orobanchioides Benth. in Hook. Comp. Bot. Mag. i. p. 361, 

 t. 19 (1836). 



Bilchnera gesnerioides Willd. Sp. PI. iii. p. 338 (1800). Lathrma 

 gesnerioides Konig ex Wilkl., I.e. B. orobaiichoides Br. in Salt, 

 Abyss., App. p. Ixiv (1814). S. gesnerioides Vatke in Oesterr. 

 Bot. Zeitschr. xxv. p. 11 (1875). 



