Orthosiphon] xcvii. LABiATiE. 859 



Zeit. lii. p. 285 (16 Sept. 1894), and that Briquet's paper was 

 noticed, I.e., p. 382 (16 Dec. 1894). 



PuxGO AndonCtO. — A decumbent undershrub ; branches ascending, 

 often abortive ; flowers bright, from whitish to rosy ; bracts deep 

 rosy purple, before the opening of the flowers forming compact rosy 

 foliate spikes. In the open sandy forest near Cazella, fairly plentiful 

 but only in one spot ; fl. and fr. 18 Oct. 1856. No. 5555. 



Var. angolensis (Briq., I.e.). 



HuiLLA. — In the poor sandy pastures of Mumpulla • fl. and fr. 

 Oct. 1859. No. 5520. Flowers rosy, shining. In rocky pastures 

 among low bushes ; fl. Dec. 1859 ; also on the heights near Ferrao da 

 •Sola in the Lopollo country ; fl. and fr. Jan. 1860. No. 5519. 



The local name of this species in Malange is " Caboboato " ; see 

 Henriques, Bol. Soc. Brot. xvi. p. 70 (July 1899). 



5. 0. villosus Briq., I.e., p. 177. 



HuiLLA. — A herb, with a woody rootstock, giving off long fili- 

 pendulous fibres ; stems numerous, 5 to 14 in. high, erect ; leaves deep 

 green ; flowers white. In secondary thickets about Lopollo, on a 

 sandy clay soil ; fl. Jan. 1860. No. 5472. 



6. 0. violaceus Briq., I.e., p.i 178. 



HuiLLA. — A perennial herb, with the habit of a Prunella ; rhizome 

 tuberous-filipendulous ; stems prostrate-ascending ; calyx purple ; 

 corolla whitish purple : filaments short, not appendaged. In rocky 

 thickets among short grasses, in company with species of Thymelaeaceae 

 and Euphorbiaceae, in the Lopollo country, and seen nowhere else ; fl. 

 Dec. 1859. No. 5473. 



7. 0. petrensis Hiern, sp. n. 



An erect, rigid, pubescent herb, 1 to 1^ ft. high; rootstock 

 woody ; stems several, erect or ascending, simple or not much 

 branched, obtusely quadrangular and furrowed at least above, 

 leafy in the middle part ; leaves opposite, narrowly elliptical or 

 obovate- oblong, obtuse or subacute at the apex, attenuate to the 

 sessile or subsessile base, firmly herbaceous, yellowish green and 

 sparingly hairy above, paler subcanescent and rather densely 

 pubescent beneath, minutely glandular, serrulate, 1 to 2^ in. long 

 by i to 1^ in. broad ; inflorescence terminal, in simple or some- 

 what branched spikes, loosely pubescent, 4 to 7^ in. long; 

 venation not strongly marked nor much branched; verticils 

 distant, about 6 in each spike, bracteate at the base, each of 

 them about 4- to 6 -flowered ; bracts small, ovate, caducous ; 

 pedicels yV to J in. long ; flowers whitish rosy, about ^ in. long 

 or rather more, spreading or drooping ; calyx i to i in. long, 

 hairy outside, oblong, somewhat gibbous at the base, shortly 

 5-cleft, the throat glabrous ; the posterior lobe ciliate, rounded, 

 Y^g in. long in flower, i in. long in fruit, usually purplish ; the other 

 lobes subulate from a comparatively broad base, ciliate, rather 

 longer than the posterior lobe ; corolla f to f in. long ; the tube 

 about ^ in. long, straight or nearly so ; the limb bilabiate ; the 

 anterior lip about ^ in. long, spreading ; the posterior lip short ; 

 stamens 4, didynamous, nearly glabrous ; filaments of one pair 



