Heliotr opium.] lxxxix. boragine^e (baker and weight). 



31 



Stigma with a conical crest, 

 f Spikes dense, ebracteate. 



Nerves of leaves impressed above . . 14. H. supinum. 



Nerves of leaves not impressed above. 



Leaves hispid with bulbous-based bristles. 

 Corolla less than twice as long as the 



calyx . . . . . 15. 



Corolla 4 times as long as the calyx . 16. 

 Leaves hirsute or pubescent. 



Corolla-lobes Hat with intermediate 



folds ...... 17. H. erosum. 



Corolla-lobes flat without intermediate 



folds 18. 



Nutlets pubescent . . . .19. 



Nutlets scabrid . . . .20. 



ft Spikes many-flowered, bracteate . . 21. 



ftt Spikes few-flowered, bracteate. 



Leaves linear, hairs simple . . . 22. 



Leaves lanceolate, with white bristles . 23. 

 Leaves oblanceolate, hairs bulbous-based 24. 

 Leaves more or less ovate, hairs simple . 25. 

 tttt Spikes many-flowered, at length lax, ebracteate. 

 Leaves linear or linear-lanceolate, sessile 



or subsessile ..... 26. 

 Leaves broader, distinctly petioled. 



Corolla 4 times as long as the calyx 27. 

 Corolla 2-3 times as long as the calyx 28. 

 Corolla not more than twice as long 

 as the calyx. 

 Leaves slightly undulate . . 29. 



Leaves flat. 



Branches pubescent . ■ 30. 



Branches scabrid. 



Stigma bifid . . . 31. 

 Stigma 4-toothed . . 32. 



H. undulatum. 

 H. hirsutissimum. 



H. oliverianum. 

 H. tubulosum. 

 H. cinerascens. 

 H. VatJcei. 



H. rariflorum. 

 H. lignosum. 

 H. arenarium. 

 H. marifolium. 



H. strigosum. 



H. abyssinicum. 

 H. longiflorum. 



H. Steudneri. 



H. dissimile. 



H. somalense. 

 H. JEduardi. 



1. H. zeylanicum, Lam. Encycl. iii. 94. Perennial. Stems 

 slender, erect, woody, much branched, finely pubescent and with long 

 white bristles. Leaves linear or linear-lanceolate, 1-3 in. long, 

 narrowed to the base, with bulbous- based hairs especially on the upper 

 side, pubescent beneath, sessile or shortly petioled. Spikes lax, 

 ebracteate, finally 6-9 in. long. Calyx 1 lin. long, hairy outside ; 

 lobes ovate. Corolla-tube 2 lin. long, hairy outside ; lobes 1 lin. long, 

 caudate-acuminate. Anthers inserted in the upper part of the corolla- 

 tube, lanceolate ; connective produced above, bifid. Style 1 lin. long, 

 glabrous ; stigma conical, slightly shorter than the style. Fruit 

 depressed globose, not longer than the calyx ; nutlets 4, often cohering 

 in pairs, rugose. — Wight, Ic. t. 892 ; C. B. Clarke in Hook. f. El. Brit. 

 Ind. iv. 148 : Hiern in Cat. Afr. PI. Welw. i. 720 ; Gregory, Great 

 Rift Valley, 395. H. curassavicum, var. zeylanicum, Burm. El. 

 Ind. 41, 1. 16. fig. 2 ? H. subulatum, Hochst. ex Vatke in Linnsea, xliii. 

 316; Martelli, Florul. Bogos. 59. H. gracile, R. Br. in Salt, Abyss. 

 Append, lxiii. H. micranthum, Welw. Apont. Phyto-Geogr. 591. 



