68 ACANTHACE® (Clarke), [ Monechma. 
Species about 27, African, whereof one (M. bracteatum) extends through 
Arabia to Bombay. 
Section 1. Bracreata#, Flowers loosely strobilate ; 
bracts round-ovate ... ie asi ae ie ... (1) bracteatum. 
Section 2. Soritart#. Flowers solitary; bracts 
inconspicuous : 
Whole plant hoary .. a oid hv (2) ineanum. 
Plant variously hairy or glabrate, not hoary : 
Calyx 5-fid ; 
Leaves ovate or obovate; 
Whole plant softly hairy aa ... (3) molle. 
Plant glabrate or with a little scat- 
tered hair... rere eek + (4) leucoderme. 
Leaves from linear to narrow-elliptic : 
Flowers few, distant, scattered ..» (5) pseudopatulum, 
Flowers approximated towards the 
ends of the branches : 
Calyx-lobes more than 4 in. 
long: «sss aki a . (6) Linaria, 
Calyx-lobes less than 4 in, 
long: 
; Leaves and calyx-lobes 
acute: 
Leaves glabrate .. (7) acutum, 
Leaves viscous-hairy ... (8) arenicola. 
Leaves and calyx-lobes ob- 
tuse;: 
Leaves oblong ... ... (9) Atherstonei, 
Leaves very few, subu- 
late: .... sie ... (10) spartioides. 
Calyx 4-fid ; 
Bracteoles densely margined by long 
white hairs sd ves aa + (11) fimbriatum, 
Bracteoles not densely margined, usually 
hairy or pubescent ; 
Leaves linear-spathulate, with a re- 
curved tip; 
Branches round ,,, ii ... (12) divaricatum, 
Branches quadrangular .., --. (13) nepetoides. 
Leaves flat at the tip, not re- 
curved ; 
Leaves narrowly _linear-lanceo- 
Jate, petioled .., ca .-. (14) namaense. 
Leaves cuueate-elliptic,  sub- 
sessile... ney (15) foliosum, 
i, M. bracteatum (Hochst. in Flora, 1841, 375), pubescent ; 
stems 1-3 ft. long; leaves up to 43 by 1-12 in, (usually much 
smaller), narrowed at both ends; petiole 2-1 in, long; spikes 
subsessile (sometimes more than 2 at one node), 2 by 4 in., strobilate ; 
bracts 4-5 in. in diam., ovate or orbicular ; calyx % in, long ; corolla 
3-} in. long, white ; lower anther-cell long-tailed; pollen oblong- 
ellipsoid, stopples 2, longitudinal bands rather obscure ; capsule 1 in, 
long, hairy, 2-seeded ; seeds smooth, yellow-brown, often with black 
blotches. Neesin DC. Prod. xi. 411; C. B. Clarke in Dyer, Fi. 
Trop. Afr. v. 214 with all syn. M. debile, Schinz in Mém. Herb. 
Boiss, x. 64. M. angustifolium, Nees in DC. Prod. xi. 412. 
