852 xcvii. LABIATE. [Hemizygia 



1. H. tuberosa Hiern, sp. n. 



An erect or ascending, somewhat wiry herb, a few inches to a 

 foot high ; root thick, woody-tuberous, giving off numerous long 

 fibres ; stems glabrescent below, puberulous or shortly pubescent 

 above and on the inflorescence ; leaves narrowly elliptical, obtuse 

 or subacute at the apex, wedge-shaped at the sessile or subsessile 

 base, glabrous or nearly so, punctulate, serrate-dentate or remotely 

 denticulate, firmly herbaceous, green above, paler beneath, 1 to 

 2^ in. long by |- to f in. broad ; inflorescence terminal, 1^ to 2 

 in. long ; common peduncle 1^ to 2^ in. long ; verticils about 

 6-flowered, sessile ; pedicels very short ; calyx obliquely ovoid- 

 campanulate, somewhat narrowed towards the obtuse base, J in. 

 long, bilabiate ; the posterior lobe entire, rounded, subapiculate 

 at the apex, nearly glabrous, erect and about yV in. long in the 

 flower, decurrent ; the anterior lip 4-lobed ; the lateral lobes 

 obliquely subquadrate, -^^ in. long, about -^^ in. broad at the base, 

 puberulous, ^vith subulate teeth along the upper margin, the 

 teeth very short except those next the middle lobes of the anterior 

 lip ; the middle lobes subulate, yV in. long ; corolla bilabiate, the 

 tube short ; stamens 4, didynamous, exserted, glabrous for the 

 most part ; two of the filaments free to the base, inserted at 

 the lower part of the corolla-tube, with a blunt puberuluous 

 broad appendage near the base ; the other two filaments united in 

 the lower third part, glabrous throughout ; style long, glabrous, 

 ^lef t at the apex into 2 short narrow branches. 



PuxGO Andongo. — In rather dry hilly bushy places near Condo ; 

 fl.-bud March 1857. No. 5565. 



3. GENIOSPORUM Wall. ; Benth. & Hook, f . Gen. PI. ii. p. 1 1 72. 



1. G. angolense Briq. in Engl. Bot. Jahrb. xix. p. 164 (1894). 

 HuiLLA. — Flowers whitish -rosy. In damp meadows along the 



Ferrao da Sola stream ; fl. and fr. Jan. 1860. No. 5490. Flowers 

 rosy-whitish. Along the Monino streams ; fl. and fr. Jan. 1800. No. 

 5491. In the damp elevated thickets of Morro de Lopollo ; fl. end of 

 April 1860. A more branched and weaker form than the type. No. 5498- 

 Frequently the leaves are opposite and not ternately verticillate. 



2. G. strictum Hiern, sp. n. 



A strictly erect, smooth herb, 2 to 3 ft. high ; stems striate or 

 sulcate, minutely glandular-puberulous, rather slender, rigid, 

 fistular ; branchlets very slender, erect or ascending ; leaves 

 ternate quaternate- or opposite ; oblanceolate, shortly narrowed 

 and apiculate at the apex, wedge-shaped to the subsessile or very 

 shortly petiolate base, firmly herbaceous, glabrous or glabrescent, 

 minutely pellucid-punctate, serrate along the upper half of the 

 margins, 1 to 2 ^^ in. long by i to ^ in. broad ; verticils several or 

 many- flowered, bracteate at the base; the upper ones crowded; 

 the lower ones separate, more or less distant ; spikes terminal and 

 in the upper axils, solitary or ternate ; the terminal one the 

 longest, about 2 to G in. long, on a peduncle of 1 to 3 in. long ; 

 pedicels in the lower verticils about ju in. long, pubescent ; the 



