﻿£00 SCROPHULARIACEJS (Hiern). [Nemesia. 



the apex, subsessile, entire or obscurely denticulate, glabrous, patent- 

 reflexed, unequal, -^-1^ in. long ; flowers solitary, subterminal ; 

 peduncles slender. Benth. in DC. Prodr. x. 264. Aniirrhimm 

 patens, TJiunb. Prcdr. 105, and Fl. Cap. ed. Schult. 482. Linaria 

 patens, Spreng. Syst. Veg. ii. 793. 



South Afbica : without locality, Thunherg ! 



Thunberg's tj'pe consists of a very poor specimen, which somewhat resemhles 

 & narrow -leaved form of ^./cBtens, Vent., or N. diffusa,, Benth. 



X. DICIIS, Benth. 



Calyx herbaceous, 5-partite ; segments scarcely imbricate, per- 

 sistent, somewhat or scarcely accrescent in fruit. Corolla mem- 

 branous ; tube short, produced at the base into a dependent spur ; 

 limb bilabiate ; posterior lip bilobed ; anterior lip trifid. Stamens 

 4, didynamous ; filaments short, the anterior longer than the posterior, 

 bent round at the base ; anthers rounded, by confluence 1-celled, all 

 together or by pairs connivent about the stigma. Style minutely 

 stigmatose at the small capitate apex, short ; ovary 2-celled ; ovules 

 numerous. Capsule subglobose or subquadrate, emarginate at the 

 apex, not much compressed, loculicidal ; valves furrowed down the 

 middle and at length bipartite, exposing the placentiferous column. 

 Seeds irregularly oblong-ovoid, bluntly angular, transverse ; testa 

 tight. 



Small prostrate or rarely erect herbs, annual or perennial; leaves opposite or 

 the upper alternate ; flowers axillary, ebracteolate. 



Djsteib. Species 7, some in Tropical Africa and Madagascar. 

 Plowers axillary ; stems prostrate ; petioles ranging up 

 to about 1 in. long: 



Perennial or annual ; leaves all opposite, snbreni- 



form or subtruncate at the base (1) reptans. 



Annual ; leaves opposite and alternate, wedge- 

 shaped or shortly narrowed at the base (2) petiolaris. 



Flowers racemose; stems ascending or suberect ; 

 petioles short : 



Annual, very slender; leaves thinly membranous (3) stellarioides. 

 Perennial ; stems wiry ; leaves firmly herbaceous (4) amboaata. 



1. D. reptans (Benth. in Hook. Com p. Bot. Mag. ii. 23) ; a 

 diffuse herb, more or less pubescent or nearly glabrous, apparently 

 perennial or sometimes annual, 6-18 in. long or more, branched at 

 the crown of the root ; stems and branches slender, tenacious, 

 tetragonous, creeping or prostrate, often throwing out adventitious 

 roots at the nodes, leafy, ascending towards the flowering extremities ; 

 leaves all opposite, subrotund or broadly ovate, rounded or obtuse at 

 tbe apex, subreniform or subtiuncate at the base, thin, dentate or 

 denticulate or entire, \-li in. long, i_l| in. broad ; petioles ranging 

 up to 1 in. long or more; flowers axillary. |-yV in. long, white or 

 wliitish or orange and white ; peduncles slender, t-'2| in. long, 

 leflexfcd in fruit; calyx-s^egments spreading, ovate or sublanceolate or 



