Gutenberg ui] lxxi. composiim;. 515 



HuiLLA. — Corollas purple ; achenes obovoid, glabrous (or some- 

 what setulose), without pappus. In elevated sandy pastures between 

 Empalanca and Nene ; fl. and fr. April and May (rainy season) 18GU. 

 Seen nowhere else in the district. No. 3998. 



Our specimens vary much in the shape of the leaves, those of No. 

 3997 being oval, ranging up to 2 in. long by 1 in. broad, the upper ones 

 alternate, the rest opposite and often with short young leafy shoots 

 quasi-fasciculate in their axils ; the achene.s are 3- or 4-gonous rounded 

 on the back and with several very delicate or obsolete ribs : they should 

 be compared with G. leiocarpa O. Hoffm. in Engl. Pfl. Ost-Afr., C, 

 p. 402 (1895), and are referred as above with some doubt. 



3. BOTHRIOCLINE Oliv. ; Benth. & Hook. f. Gen. PL ii. p. 226. 



1. B. Schimperi 0. & H. ex Benth. in Hook. Ic. PI. xii. p. 31, 

 t. 1133 (1873) & in Oliv. Fl. Trop. Afr. iii. p. 2G6. 



B. longipes N. E. Br. in Kew Bull. 1894, p. 389. 



Var. angolensis. 



A bushy herb, with a straight leafy little trunk of 5 to 6 ft. 

 high, dividing into erect-spreading branches ; branchlets pallid, 

 striate-sulcate, puberulous ; leaves, at least the upper ones, mostly 

 alternate, rarely opposite, elliptical, acuminate or cuspidate at the 

 apex, wedge-shaped at the base, sparingly scattered with adpressed 

 hairs, pale-green, paler beneath, membranous, minutel}' glandular- 

 punctate, very sweetly balm-scented, sharply toothed, '2\ to 4^ in. 

 long by ^ to If in. broad; petiole -| to '-^ in. long, pilose, often 

 sub-alate by the sub-decurrent blade, widened ribbed and more or 

 less clasping at the base ; capitula campanulate or hemispherical, 

 i to ^ in. long, on slender puberulous pedicels of i to | in. long, 

 arranged in broad corymbose sparingly bracteolate cymes termi- 

 nating the branches ; bracteoles narrow, more or less hairy ; 

 involuci-al scales from ovate to lanceolate- or linear-oblong, 

 puberulous or glabrate, unequal, pointed or acute at the apex, 

 mostly about 3-ribbed down the greenish back, with scarious or 

 coloured margin minutely denticulate towards the apex ; corolla 

 lilac-purple, with the tube glandular-hairy especially at the 

 narrowed base, and with 5 narrow acute lobes; style-branches 

 rather shorter than the corolla-lobes ; achenes glabrous, mostly 

 curved downwards, with about 5 deep furrows and a very few 

 caducous bristles ; receptacle areolate. 



Pt'ngo Andoxoo. — In the thickets of the prjesidium near Cabondo, 

 sparingly ; fl. and fr. end of April 1857. No. 1003. 



Var. huillensis. 



An annual herb, ^ to 2 ft. high ; stem erect, simple or branched, 

 pallid, sulcate-striate, pubescent or scabrid at least above ; branches 

 opposite or alternate, erect-patent ; leaves elliptical, pointed or 

 somewhat acuminate at the apex, more or less attenuate into 

 the petioles at the base, membranous, minutely pellucid-punctate, 

 sparingly scattered with hispidulous hairs, closely toothed, 1 to 4 in. 

 long by ^ to 11 in. broad, pale green above, paler beneath, the 

 lower ones opposite, the upper alternate ; petioles j-V to ^ in. long, 

 pubescent, more or less clasping at the base ; capitula homogamous, 



