﻿162 SCROPHULARIACE^E (Hiem). [Diascia. 



43, D. rigescens (E. Meyer ex Benth. in Hook. Comp. Bot. Mag. 

 ii. 18) ; a pereunial herb, erect or ascending, glabrous or glandular- 

 puberulous, rigid, comparatively robust, l|-3^ ft. high, shrubby 

 below, more or less branched from the base upwards; branches 

 quadrangular, smooth, often fistular, leafy up to the inflorescence or 

 nearly so ; internodes mostly short ; leaves mostly opposite, often 

 some alternate, ovate or lanceolate, obtuse or subacute at the apex, 

 cordate or tnincate at the sessile base, sharply toothed or denticu- 

 late, |-lf in. long, X2~l i^- ^Toad, somewhat thickly membranous ; 

 racemes terminal, many-flowered, elongated, simple or divided at the 

 base ; pedicels ^1 in. long or the upper shorter, slender, bracteate 

 at the base ; bracts ovate or lanceolate, acute, sessile, cordate at the 

 base, smaller than the leaves ; calyx-segments ovate, obovate, oblong 

 or ovate-lanceolate, obtuse or subacute, usually glandular-puberu- 

 louR, Yo~i ^^- ^'^^Si persistent, nerved at least in fruit ; corolla rosy, 

 about i in. broad, sometimes larger or smaller ; spurs ^~ in. long; 

 lilaments linear, flattened, very narrowly winged, nearly equal in 

 length, two of them bent at the base with the widening wings 

 following the outf-ide of the semicircular curvature, all glabrous or 

 minutely glandular; capsule ovoid -ellipsoid, obtuse, glabrous or 

 minutely glandular, }-^ in. long. DC. Prodr. x. 259 ; 0. Kwtize, 

 Rev. Gen. PL iii. ii. 230. 



Vab. j8, bractescers (Hiern) ; bracts conspicuously exceeding the flower-buds 

 in the young spike-like racemes. ? D. rigescens, var. montana, Diels in Enyl. 

 Jahrb. xxiii. 471- 



Coast Kkgion : Sl-ockenstroTn Div. ; Katberg, a peak in the Elandeberg 

 range, 2000-4000 ft., Brege, 3631a! Mrs. Barber, 27 I 43 ! Hutton ! Botvker! 

 Old Katberg Pass, .5200 ft , Galpin, 2391 ! Bnthurst Div. ; on stony hills between 

 Kap Eiver and Fish Rivei-, below 1000 ft.. Dieje, 3631b ! Cathcart Div. ; near 

 Cathcart, Kutdze ! Albany Div.; on dry grassy hills near Grahamstown, 

 Bunhury ! Alexander! Kingwiliiamstown Div.; Perie Mountain, near Kiu^- 

 williauistovvn, 3000 it. , Flanagan in Herb. Bokts, 2156! Scntt-Elliot, 904! on 

 damp slopes near King Williamstown, 1500 ft., Tyson, 974 ! Mount Coke, 

 2000 ft, Sim, 1425! Stutierheim Div.; Dohne Mountain, 4700 ft., Bolus, 

 8764! Qiieenstown Div.; without precise locality, Cooper, 2J87 1 KattVaria, 

 Cooper, 3549 ! Var. ,8 : KafEraria, Cooper, 33!i ! 



Kalahari Region : Orange River Colony ; Mount anx Sources, 6000 ft, 

 Guthrie, 4877! 



Eastern IIegion: Tembuland ; Bazeia, 2000-3000 ft., Ba^^,r, 19 ! in a deep 

 valley near Eugcobo, 4000 ft.. Bolus, 8765 I Griqnaland East; hill-sides and 

 forest borders near St. Augustine, 2500-aOOO ft., Baur, 204! near Kokstad, 

 Ti/son, 1668! near Zuurherg, Wood, 2O0O ! 3147! Pondoland ; between St. Johas 

 River and Umtsikaba River, 1000-2000 ft., Drege, 3631c ! 



Forms, with narrower leaves and usually with rather acute leaves and smaller 

 flowers, belong to the variety angustifolia, Benth. in DC- Prodr. x. 259 ; those 

 with glabrous calyx-segments cou!^titute the sub-variety calm, the flowers ci 

 which are variously stated to be blue and pink. 



44. D. Macowani (Hiern) ; a herb, Ii ft. high or more; branches, 

 tetragonous, slightly puberulous ; lower internodes mostly much J 

 longer than the leaves ; leaves opposite, or the upper subopposite o*| 

 alternate, cordate, cuspidate-acute or sabobtuse at the apex, sessile, ' 

 half amplexicaui, narrowly decurrent, denticulate-serrate, firmly 



