﻿Trichodesma.'] BORAGiNEac (Wright). II 



entire, pectinate or glochidiate margin, lower face almost entirely 

 adnate to the torus. Seeds suborbicular or obovate ; embryo straight 

 or slightly curved ; cotyledons plano-convex ; radicle short. 



Erect herbs, usually hispid; leaves opposite or alteruate, quite entire; cynics 

 racemose, terniinul, unilateral, simple or bifid, usually bnicteate. 



DiSTBiB. Species about 10, iu the tropics and subtropies of Asia, Africa, and 

 Australia. 



Calyx-lobes cordate at the base ; corolla much exserted : 



Leaves ovate-lanceolate ... ... ... ... (1) physaloides. 



Leaves linear-lanceolate ... ... ... ... (2) angnstifolium. 



Calyx-lobes not cordate at the base ; corolla scarcely 

 exserted ... ... ... ... ... ... ... (3) africanum. 



1. T. physaloides (A.DC. in DC. Prod. x. 173); stems annual 

 from a perennial fleshy rootatock, 1-2 ft. high, glabrous ; leaves 

 usually opposite, sessile, ovate-lanceolate, acuminate, with flat white 

 discs on both surfaces, some of which bear hairs ; panicle manj- 

 flowered ; pedicels up to 9 lin. long ; calyx inflated, 6 lin. long ; lobes 

 acuminate, cordate at the base, purple ; corolla pure white (McLea), 

 1 in. diam. ; lobes 6 lin. broad, shortly acuminate ; anthers villous 

 on the back ; terminal awn longer than the anther-cells ; nutlets 

 smooth on the ventral side, margins inflexed and papillose-denticu- 

 late. T.sp., Drege in Linnciia,xx. 197. Friedriclisthalia physaloides, 

 Fe7izl, in Endl. Nov. Stir p. Decad. i. 53. 



Kalahari Region : Transvaal ; near Pretoria, McLea in Herh. Bolus, 3107 ! 

 Aapies River, Burke ! Nortliern slopes of Magalies Berg, 6000-7000 ft., Zeyher, 

 1249! Burke, 981 Pilgrims Rest, Greenstock: 



Also in tropical Africa. 



2. T. aDgustifoIium (Harv. Thes. Cap. i. 26, t. 40) ; stem erect, 

 12-18 in. high, branched, terete, scabrid ; leaves 1^-3 in. long, 

 1-3 lin. broad, linear-lanceolate, subsessile, acute at both ends, densely 

 scabrid on both sides with white bulbous-based hairs ; peduncles 

 extra-axillary, 1-flowered, 1 in. long, slender, with adpressed hairs ; 

 calyx 6 lin. long, 1 2 by 8 lin. in fruit, cordate, acuminate, scabrid 

 outside ; corolla blue (Nelson) ; tube 4 lin. long ; lobes 4 lin. long, 

 2i lin. broad, cordate, long acuminate, reflexed ; anthers sessile, 

 lanceolate, hairy on the back, terminal appendage slender, slightly 

 shorter than the anther-cell ; style 6 lin. long, subulate, glabrous ; 

 nutlets spiny on the dorsal side, granular on the ventral. Tricho- 

 desma sp., Drege in Linncea, xx. 197. 



Western Region : Great Namaqualand; Scap River, Scliinz, 758! 



Kalahaei Kegion : Orange River Colony; Vet River, Burke! Rlienoster 

 River, 7000-8000 ft., Sanderson, 127 ! near Bosbof, Barber ! Leeuw Spruit and 

 Vredefort, Barrett-Eamilton ! Transvaal; nesir Pretoria, Wilms, 943! Tuck in 

 Herb. Norm. Aust.-AJr., 813! and in Herb. MacOaan, 2213! near Potches- 

 troom, Roe in Herb, Bolus, 5713 ! Mngiilies Berg, Zeyher, 1251 ! Burke, 60 ! 

 313 ! Klip Spruit, beyond the Maquasi Hills, Nelson, 236 ! 



3. T. africanum (R. Br. Prodr. 496) ; stem erect, branched, 1 ft. 

 or more high, furnished with rigid white hairs springing from a 



