532 Lxxi. COMPOSIT/E. [Yernonia 



Var. ambaeensis. 



A perennial herb ; rootstock thick, woody, several-headed, 

 more or less woolly about the apex ; leaves radical, oblanceolate, 

 rounded or shortly pointed at the apex, wedgeshaped to an 

 attenuate shortly petiolate base, membranous, glabrous, erect, 

 entire or with a few minute or distant teeth, 3 to 7 in. long 

 (including the petiole) by fr to 1^ in. broad ; scapes numerous, 

 rather thick, erect or ascending, glabrous, 10 to 18 in. high; 

 capitula thick, cylindrical-oblong, homogamous, abovit 1^ in. in 

 diameter, many-flowered, solitary ; corolla deep-blue, with an 

 elongated filiform tube, elongate-campanulate deeply 5-cleft limb, 

 and linear-acuminate lobes glandular-bearded outside at the apex ; 

 style filiform, thickened and hispid below its division ; achene 

 (not quite ripe) linear-oblong, angular, subglabrous or sparingly 

 hispidulous ; pappus pluriseriate, ^ in. long, with rigid straight 

 hispidulous brown-rufous setae. 



Ambaca. — In sandy bushy forests largely composed of Cussonia 

 angolensis (Welw. Herb. No. 480), near Zamba towards the river 

 Lucala, rather rare ; fr. and one specimen only in fl. Oct. 1856. 

 No. 3882. 



This species apparently belongs to the section Lachnorhiza. 



32. V. prsecox Welw. ex 0. Hofi'm., I.e., p. 16. 



V. violacea Klatt in Ann. Nat. Hofmus. vii. p. 99 (1892); non 

 0. &H. (1873). 



GoLUXGO Alto. — A herb, 2 to 2| ft. or sometimes only a foot high; 

 rootstock thick, fleshy, deformed, crowded with long fibres, perennial ; 

 stem erect, leafy below ; leaves appearing mostly after the flowers ; 

 flowers violet-purple or red ; corollas tubular, 5-cleft. In elevated 

 bushy i^astures in Sobato Bumba, on the herbaceous declivities of 

 Alta Queta, rather rare ; fl. aud fr., the leaves destroyed by fire, Oct. 

 1855 ; in similar places after the burnings, fl. and fr. end of August 

 1855 ; in thin secondary thickets grown up after the burnings, fl. and 

 fr. end of Sept. 1855. No. 3330. 



33. V. chthonocephala 0. Hoffm., I.e., p. 17. 



GoLUNGo Alto.— A dwarf perennial herb, with the habit of 

 Saussvrca jv/f/ma'ci Spr. ; rootstock woody, many-headed ; stems very 

 short, beset with whitish-rufous woolly hairs ; flowers purplish verging 

 on violet-)jlue, produced in spring before the leaves soon after the 

 burning of the plains and presaging the coming rains ; capitula 

 cylindric-ovoid, thick, singly on short scapes. On elevated rather dry 

 slopes amongst short herbage near the summit of the mountains of 

 Serra do Alto Queta, at Carengue ; seen nowhere else ; fl. August 

 to Jan. 1855-7. In consequence of the burning of the country by 

 hunters and shepherds, the leaves of this plant are rather rarelv found. 

 No. 3886. 



34. V. vaginata 0. HofFm., I.e., p. 14. 



HxjiLLA. — A perennial herb, with several stems, ascending, 1 to 

 1^ ft. high, clothed in all parts with a dense white felt ; corolla-lobes 

 three times as long as the tube ; anthers with long tails ; style cylin- 

 drical, thickened and patently pilose at its bifurcation ; the branches 



