Raoulia.] XXXIX. COMPOSITAE. 301 



11. RAOULIA, Hook. f. 

 Involucre oblongj ovoid or hemispherical ; bracts imbricating in 2 or more 

 series, the inner often with white radiating tips. Receptacle very narrow, flat 

 or convex, naked. Outer florets in ] or 2 series, female, filiform. Disk- 

 florets numerous, hermaphrodite ; mouth funnel-shaped, 5-toothed. Anthers 

 with capillary tails. Style-branches exserted, usually truncate. Achenes small, 

 oblong or ovate. Pappus-hairs in 1 series, sometimes thickened at the tips. 

 Very short densely-tufted perennial herbs, sometimes with a woody rootstock. 

 Leaves minute, densely imbricatiag. Heads solitary, terminal, sessile or shortly 

 pedunculate. 



A small genus, confined to New Zealand, with the exception of 1 or possibly 2 species found in 

 Australia and Tasmania. The species are distributed from the Thames Goldfield to Stewart Island, 

 but are most numerous in the South Island. I fully agree with Sir Joseph Hooker that it is im- 

 possible to maintain Raoulia as a separate genus, there being no character to distinguish it from 

 Gitaphaliuni and ffcKc/irj/sJtm except the peculiar habit. The species in Section I. should be referred 

 to Gnaphalium, those in Section II. to Helichrysum. For the present they are retained under 

 Raoulia simply as a matter of convenience. 



Name, in honour of M. M. B. Baoul, surgeon to "L'Aube" during her expedition to New 

 Zealand in 1840-41. 



I. Leptoeappus. Pappus-hairs copious, slender, not thickened upwards. 

 ' Involucral bracts without white or radiating tips. 



Leaves spathulate, erect or recurved, clothed above with snow-white wool. 



Florets about 12 . . 

 Leaves mostly acute, linear, recurved, glabrous or glabrate or densely tomentose 

 Leaves broadly ovate-subulate, glabrate. ■ Florets 6-8 

 Leaves patent, linear, silky, involute 



** Involticre with the inner bracts white-tipped and radiating. 

 Stems slender. Leaves loosely imbricate, glabrous or glabrate 

 Stems short. Leaves densely imbricate, silky or glabrous . . 



II. Imbbicabia. Pappus-hairs few in 1 series, thickened upwards. 

 * Involiuiral, bracts without white or radiating tips. 

 Leaves subulate, spreading, rigid, glabrous 

 Leaves densely imbricate, linear, obovate-oblong, rounded, hidden by the dense 



tomentum 

 Leaves ovate, j^jin. long, imbricate, silvery 



*• Involticres with white or radiating tips. 



Leaves closely imbricate, Jin.-Jin. long, linear-oblong 



Stems irregularly branched, stout. Leaves recurved at the tips. Florets 

 about 40 



Forming dense patches. Leaves densely imbricate, hairy on both surfaces. 



" Florets crimson " .. .. .. .. .. ..12. B. rubra. 



Forming large dense woolly masses. Leaves densely imbricate, with a tuft of 



hairs at the tip, cottony beneath . . . . . . . . . . 13. iJ. mammillaris. 



Forming large dense masses. Leaves densely imbricate, linear-oblong, trun- 

 cate at the apex, hairy above, glabrous beneath . . . . . . 14. iJ. Goyeni. 



Leaves most densely imbricate ; tips silky with appressed silvery tomentum . . 15. R. bryoides. 



Forming dense woolly masses. Leaves densely imbricate, subacute, hidden by 



the dense tomentum . . . . . . . . . . . . R. Brownii. 



Leaves broadly cuneate or flabellate, truncate at the apex, corrugated beneath, 



with a broad margin ; hairy above .. .. .. .. R. Buchanani. 



