u 



lxxxix. boragine^e (baker and wright). [Heliotropitim . 



Leaves oblong, acute, 3-7 lin. long, li-4 lin. wide, tapering towards 

 the base, entire, hoary on both surfaces and furnished with adpressed 

 bristles. Flowers often solitary ; pedicels about 1 lin. long. Calyx 

 funnel-shaped, divided nearly to the base ; lobes 5, lanceolate, acute, 

 the anterior 2 lin. long, the rest slightly shorter. Corolla-tube 1 lin. 

 long ; limb funnel-shaped about 2 lin. long ; teeth 5, triangular, obtuse, 

 |-f lin. long, also 5 accessory alternating with the others. Anthers 5, 

 sessile, | lin. long, shortly apiculate, puberulous. Stigma | lin. long. 

 Nutlets 2 lin. long. 



South Central. Congo Free State : Katanga ; Lukafu, Yerdiclc, 141, 182. 



8. TRICHODESMA, R. Br. ; Benth. et Hook. f. Gen. PI. ii. 845. 



Calyx deeply 5-lobed, accrescent ; lobes finally rounded or cordate 

 at the base. Corolla-tube short ; throat naked ; lobes 5, broad or 

 narrow ; sinuses often incurved. Stamens 5, inserted at the throat of 

 the corolla-tube ; filaments very short, flattened ; anthers linear, con- 

 nivent with the connective more or less produced above the cells and 

 often spirally twisted. Ovary 4-lobed, ovoid ; style long, subulate ; 

 stigma small ; ovules nearly horizontal. Nuts 4, ovoid, triquetrous on 

 the inner face, by the lower part of which they are attached to the 

 broad receptacle, often margined, smooth or tubercled on the bao 1 --. 

 Seeds subglobose or obovoid, horizontal or pendulous; embryo straigbr, 

 or rather curved ; cotyledons plano-convex ; radicle short. — Erec t 

 herbs, often bristly and tubercled. Leaves alternate or subopposite. 

 Flowers in terminal cymes, blue or white. — Pollichia, Medic. Bot. 

 Beobacht. 247. 



Species about 15, also North African, Asiatic, and Australian. 



Awns of anthers straight. 









Connective glabrous at the back ; corolla 



lobes 







narrow. 









Leaves 1^-3 in. long, green .... 





1. 



T. Medusa. 



Leaves ^ in. long, silvery .... 





2, 



T. heliocharis. 



Connective puberulous on the back ; corolla 



dobes 







broad ....... 





3. 



T. hispidum. 



Awns of anthers contorted; connective pilose on the 







back in the lower part. 









Calyx glabrous or slightly hairy 





4. 



T. physaloides. 



Calyx copiously hairy. 









*Stems woody. 









Branches glabrous .... 





5. 



T. droogniansianum 



Branches hairy. 









Cymes many-flowered 





6. 



T. Schimperi. 



Cymes few-flowered. 









Leaves linear or linear-lanceolate . 





7. 



T. lanceolatum. 



Leaves lanceolate .... 





8. 



T. olecefolium. 



Leave* ovate or oblong. 









Corolla-lobes long cuspidate 





9. 



T. Hildebrandtii. 



Corolla-lobes minutely cuspidate 





10. 



T. pattciflorum. 



