Tboza.| LABIAT& (Brown). 303 
spreading ; 4 upper }-} lin. long, ovate, obtuse ; lower lobe # lin. 
long, } lin. broad, oblong, obtuse ; stamens very much exserted, all 
inserted at about the same height at the mouth of the corolla-tube, 
subequal ; filaments free, glabrous, 13 lin. long; style filiform, 
glabrous, exserted ; stigma bifid, with erect lobes } lin. long ; female 
flowers not seen. . 
Katauart Rearon: Orange River Colony; without precise locality, 
Mrs. Barber, 7 ! 
This differs from all the other South African species in its long dense-flowered 
male spikes, and 5-lobed calyx. 
XIV. MENTHA, Linn. 
Calya tubular or campanulate, 10-13-nerved, 5-toothed, equal or 
sub-bilabiate. Corolla-tube funnel-shaped ; limb 4-lobed ; lobes sub- 
equal or the upper rather broader, entire or emarginate. Stamens 4, 
subequal, erect, distant ; filaments free ; anthers 2-celled. Disk 
equal, subentire. Style shortly 2-fid at the apex. Nutlets ovoid, 
smooth. 
Herbs with opposite, usually toothed leaves; flowers small ; verticils usually 
many-flowered, aggregated in spike-like racemes or dispersed and axillary ; floral 
leaves reduced to small bracts ; bracteoles usually small, minute or obsolete ; 
stamens dimorphic. 
DistRIB. Species variably estimated by various authors, probably between 20 
and 30, distributed throughout the world, but more prevalent in temperate 
regions. 
Leaves sessile (except in longifolia, sub-sp. capensis, var. 
salicina) ; verticils in spike-like racemes : wee 
Base of calyx and pedicels hairy se ae ... (1) longifolia. 
Base of calyx and pedicels glabrous... ae ... (2) viridis. 
Leaves petiolate ; verticils approximate in a head ... (3) aquatica. 
1. M. longifolia (Huds. Fl. Angl. ed. i. 1762, 221 ; leaves sessile 
(except in var. salicina of subsp. capensis) ; and as wellas the base of 
the calyx and pedicels hairy. M. sylvestris, Linn. Sp. Pl ed. i. 
(1763) 804. 
A very polymorphic plant of which Briquet makes no less than 160 varieties in 
21 sub-species. 
The name longifolia, Huds., is prior to that of sylvestris, Linn., and has been 
adopted by Briquet. 
Sussp. polyadena (Briq. in Engl. & Prantl, Pflanzenfam. iv. 3a, 
321) ; aherb reaching 20 in. high ; stem densely adpressedly retrorsely 
pubescent on the angles ; internodes 14-1} in. long ; leaves lanceo- 
late or narrowly ovate-lanceolate, acute, 14-2} in. long, 4-} in. 
broad, green, quite glabrous and very glandular on both sides, 
margins more or less revolute and with distant triangular teeth, 
cordiform at the base; nerves simple, conspicuous below, deeply 
impressed above ; inflorescence in spike-like racemes 1-24 in. long ; 
