294 LABIAT (Cooke). | Holanthus. 
IX. HOLANTHUS, Mart. 
Calyx small, ovoid, campanulate or tubular, truncate or obscurely 
2-labiate, finally circumscissile near the base, in fruit usually 
accrescent, often contracted near the apex. Corolla-tube exserted, 
straight or decurved, slightly dilated or not above ; limb 2-labiate ; 
upper lip obtusely 4-toothed ; lower lip larger, concave, entire. 
Stamens 4, didynamous, declinate ; filaments free, without teeth ; 
anthers confluent, 1-celled, at length flattened. Disk glandular. 
Style shortly 2-fid, with subulate arms. Nutlets rotundate or oblong 
compressed, smooth. 
Annual or perennial herbs or small shrubs ; leaves usually fleshy ; cymes form- 
ing a laxly paniculate raceme, with sessile or very shortly pedicellate secund 
flowers ; bracts small, caducous ; corolla lilac. 
DistriB. Species about 50, the others in Tropical Africa. 
Calyx } lin. long ; bracts minute ... oye ae ... (1) parvifolius. 
Calyx 3-3 lin. long ; bracts large: 
Le:ves suborbicular ; bracts broadly ovate, green... (2) canescens. 
Leeves obovate-lanceolate ; bracts elliptic-lanceolate, 
ren a. se pen ie ae ia ... (3) Rehmannii. 
1. &. parvifolius (Benth. in DC. Prodr. xii. 80) ; an erect plant 
reaching 14-2 ft. in height ; stems puberulous, more or less woody 
below; leaves petiolate, 3-3 in. long, nearly as broad as long, sub- 
fleshy, broadly ovate or suborbicular, obtuse, irregularly and shortly 
toothed, glabrous or puberulous ; petiole nearly as long as the blade ; 
flowers sessile or subsessile, in unilateral puberulous cymes race- 
mosely arranged ; bracteoles minute ; calyx puberulous, } lin. long, 
tubular-campanulate, 2-lipped ; upper lip 3-toothed, the lower sub- 
truncate ; corolla externally puberulous ; tube 3 lin. long, curved, 
slightly enlarged towards the mouth ; upper lip 1} lin. long, with 
2 tolerably deep rounded apical lobes and 2 obtuse lateral ones ; 
lower lip 2 lin. long ; longer pair of stamens 2 lin. long ; shorter 
pair 14 lin. long ; anthers orbicular, flattened ; style as long as the 
longer pair of stamens, shortly 2-fid. 
Eastern Recon: Natal; Inanda, Wood, 518! 828! Gerrard, 1236! Pondo- 
land ; between St. Johns River and Umsikaba River, Drége, 4765! 
2. HB. canescens (Guerke in Engl. Jahrb. xxii. 147) ; branched 
undershrub 9-18 in. high; stems and branches softly pubescent or 
puberulous ; leaves }—1 in. long and about as broad as long, subor- 
bicular, obtuse or subacute, narrowed at the base into the petiole, 
coarsely serrate, hoary-puberulous on both sides; cymes dense ; 
flowers sessile ; bracts foliaceous, green, reaching 14 lin. long, ovate, 
obtuse or subacute, pubescent on both sides, ciliolate ; calyx tubular, 
truncate or obscurely toothed, pubescent, cireumscissile near the 
base, leaving the lower portion as a persistent scutelliform disk, in 
