MR. P. MACOWAN ON THE FLORA OF TUE CAFE. 481 



about 20, rays 5, narrow. Acheues hispidulous. Habit of S. Zey- 

 heriy Turcz., but branched conspicuously. 



Several imperfect ramuli of this Senecio were received in 1801, 

 and marked " ^ Lajptopliylli, near to S, lo7igifolius^ L." Dr. 

 Harvey phiced a mark of doubt to tliis suggestion, and desired 

 further specimens. The plant was not found again till the pre- 

 sent summer, when it occurred in plenty, growing Avith >S'. Zey- 

 Jieri, Turcz. Its systematic place will doubtless be near that 



species. Both plants are remarkable for a peculiar surculoid 

 growth, the perennial roots sending up a multitude of erect half- 

 herbaceous stems. This is independent of that frequent cause 

 of such habit, the South-African custom of burning off the 

 grass. The texture of leaf, the involucrum, and achenes also ex- 

 hibit a strong mutual resemblance between the two species. 

 The chief diiferentia in >S'. surcidosus are the fewer and much nar- 

 rower rays, lanceolate leaves, repeatedly divided growth, and 

 more paniculate inflorescence. 



In several places near Grahamstown occurs a fruticose Senecio^ 

 which has a certain resemblajice to the half-lierbaceous sjjccies 

 characterized above. It would seem to be a very luxuriant form 

 of *S^. longifolitts, L. The common form, with " leaves terete from 

 the strongly involute edges," as described by Harvey, is common 

 enough. DeCandolle altogether omits this character, which, in 

 dried specimens, may be easily overlooked. The variety to which 

 attention is now drawn, distributed by me as no. 7SG, has leaves 

 linear-lanceolate, sometimes obscurely toothed towards the apex, 

 and plicate only instead of involute-terete. It thus approaches 

 S. surculosus. On the other hand, the inflorescence and capitula 

 are precisely those of the most typical forms of S. longifolius, L, 

 Perhaps, in view of this curious form, the three species >S'. longi- 

 folius^ surculosus^ and ZeyTieri might most naturally be grouped 

 together under Sect. Lepfophjllu There would then be a reguLar 

 gradation from the linear leaves of the first to the sometimes 

 rhombic-ovate, and more often shortly obovate leaves of the last. 



It may not be amiss to add that Dr. Harvey's Senecio rhomhoi- 

 deusy founded on a single imperfect specimen of Ecklon's, has been 

 refound near Grahamstown, and is certainly a good species, never 

 varying in cultivation, as does S. oxgruzf alius. S.gramineus, Ilarv., 

 unquestionably distinct from albanenms, not only by its villous 

 ovaries but by a different flowering-season, has occurred both liere 

 and at Graaf Eeynet, being found at the latter place by Mr. H. 

 Bolus. To him also is due the refinding of the rare S, cotylcdonis^ 

 DC, and acufifolitis, DC. Kleinia acaiilis, DC, till lately existing 



