268 XXXIX. COMPOSITAE. [Okaria. 



short. Heads turbinate, short ; involucral bracts about 10, oblong-ovate. Florets about 5. Pappus- 

 hairs slightly thickened at the tips. 



Var. angustata. Leaves oblong or elliptical-oblong ; margins often waved. Heads narrow, 

 tubular ; involucral bracts linear-oblong, slightly erose, puberulous or glabrous. Ray-florets 2 ; rays 

 very broad. Disk-florets 3. Achene faintly grooved, silky. 



Sub-var. dubia. Leaves broader. Heads shorter ; involucral bracts broadly oblong, villous. 

 Florets 5-8. Pappus hairs unequal, slightly thickened at the tips. 



NOETH Island : Auckland ; Hawke's Bay ; Taranaki : from the North Cape to the White 

 Clifis. Dec, Jan. Var. ruhicunda : mouth of the Mokau River. Var. angustata : northern portion 

 of the Auckland District. 



This species varies greatly in the shape of the flower-heads, in the number of florets in each 

 head, in the form of the leaves, and in the colour of the branches. Var, angustata might be con- 

 sidered distinct were it not directly connected with the typical form by its sub- variety. 



12. O. nitida, Hook, f., Eandbk. 125. A shrub, 3ft.-12ft. high. Branch- 

 lets stout or slender, angular. Leaves petioled, IJin.— 3in. long, fin.— IJin. 

 broad, more or less coriaceous, silvery and shining beneath, ovate or broadly 

 ovate-lanceolate, acute or acuminate, obscurely or acutely toothed or sinuate. 

 Heads ^in.— Jin. long, shortly turbinate, very numerous, forming large rounded 

 corymbs, with stout or slender silky or pubescent branches ; the lower invo- 

 lucral bracts short, ovate, pubescent or villous ; upper narrow-linear, ciliate or 

 nearly fimbriate, glabrous, or sparingly pubescent at the tips. Florets 16—20 ; 

 rays 8—10. Disk-florets abruptly contracted below the funnel-shaped mouth 

 into a narrow silky tube; segments 5, recurved. Achene short, broad, silky. 

 Pappus unequal. — O. populifolia, Col. in Trans. N.Z.I, xvii. (1885) 243. 

 0. suborbiculata, Col., I.e. xviii. 263. Eurybia nitida, Hook, f., PI. N.Z. i. 17. 

 E. alpina, Lindl. & Paxt., PI. Card. ii. 84. Shawia arborescens, DC, Prod. 

 V. 345. Solidago arborescens, G. Forst., Prod. n. 298; A. Rich., Fl. N.Z. 252 

 (not of Cunn.). 



Var. cordatifolia. Leaves orbiculate, shortly acuminate, rounded or cordate at the base, 

 very coriaceous. Heads broadly turbinate ; involucral bracts about 20, the upper oblong or oblong- 

 lanceolate, ciliate. Florets 20 or more ; rays very long and narrow ; disk-florets almost campanulate 

 at the mouth. 



Var. caplllaris. Branchlets stout or slender. Bark pale, furrowed. Leaves Jin.-lin. long, 

 ovate or almost obovate, membranous, obtuse or subacute ; petioles short and slender. Corymbs 

 exceeding the leaves ; branches capillary. Heads 3-6. Florets 8-10. Achenes rather longer than 

 in the type. — 0. capillaris, Buoh. in Trans. N.Z.I, iii. (1870) 212. 



NORTH and SOUTH Islands : from the Bast Gape and Ucewera Country to Foveaux Strait. 

 STEWART Island. Sea-level to nearly 4,000ft. Var. cordatifolia: STEWART Island. Var. 

 capillaris: Nelson mountains. Travers ! Dall! Dec, Jan. 



An extremely variable species, easily recognised by the satiny lustre of the lower surfaces of 

 the leaves, the dense corymbs, and numerous florets. 



13. O. macrodonta, Baker in Gard. Chron. (1884) i. 604. A shrub or 

 small tree, 6ft. -20ft. high. Branchlets, panicles, and leaves below whitish witli 

 closely-appressed pubescence. Leaves 2in.-4in. long, lin.— l|in. broad, oblong 

 or ovate-oblong or ovate, acute or acuminate, pubescent on both surfaces when 

 young, strongly toothed, truncate or slightly narrowed at the base, flat or 

 margins slightly waved ; veins divergent, not forming a right angle with the 

 midrib. Corymbs large, rounded. Heads numerous, Jin. long, obconic ; invo- 

 lucral bracts few, linear, obtuse, pubescent or villous, ciliate at the tips, the 



