Olearia.] COMPOSITAE. 919 
4-5 series, imbricate, villous or thinly tomentose, lower ovate, acute, upper 
ovate-lanceolate. Florets of the ray 4-7; of the disc 8-10. Ripe 
achenes not seen. 
Nortu Istanp: Wanganui River, Ohura basin, B. C. Aston! W. A. Thomson ! 
(cultivated specimens). 
This is evidently a distinct species, although clearly allied to the O. furfuracea 
group. But it is readily separated by the large oblong-obovate leaves, which are 
remarkable for their thinly coriaceous texture, fihely reticulated veins, and the delicate 
thin and silvery tomentum of the under-surface. The species is named in honour of 
Mr. W. A. Thomson, of Dunedin, who has kindly supplied me with flowering specimens 
cultivated in his garden at Half-way Bush, Dunedin. 
| | Reretf. ) 
15. O. aboreseens Cockayne and R. M. Laing in Trans. N.Z. Inst. 
xl (1911) 367—A much-branched shrub 3-12 ft. high, rarely more; 
branches stout or slender, often angular. Leaves alternate, variable in 
size, 1$-34in. long, broadly ovate or elliptic-ovate, acute or acuminate, 
rounded and often unequal at the base, coriaceous or almost membranous, 
clothed with appressed white and satiny tcmentum beneath; margins 
distinctly or obscurely sinuate-dentate, rarely entire; petiole 4-1 in. long. 
Corymbs large, rounded, much branched, very effuse; branches slender, 
silky-pubescent. Heads numerous, 4-}in. long, obconic; scales of the 
involucre laxly imbricating; the outer ovate, pubescent or villous; the 
inner linear, fimbriate or sparingly silky. Florets 15-20; ray-florets 
7-10; with a short broad ray. Pappus-hairs unequal, dirty-white or 
reddish. Achenes short, broad, silky.—Solidago arborescens Forst. f. 
Prodr. (1786) 56. Steiraclis arbcrescens DC. Prodr. v (1836) 345. 
Shawia arborescens Raoul Choix (1846) 45. Eurybia nitida Hook. f. FI. 
Nov, Zel. 1 (1853) 117. KE. alpina Lindl. and Paaton Flow. Gard. ii (1851-52) 
84.  Olearia nitida Hook. f. Handb. N.Z. Fl. (1864) 125; 7. Kirk Students’ 
Fl. (1899) 268; Cheesem. Man. N.Z. Fl. (1906) 285; Ill. N.Z. Fl. i (1914) 
t. 88. O. populifolia Col. in Trans. N.Z. Inst. xvii (1885) 243. O. sub- 
orbiculata Col. l.c. xviii (1886) 263. O. erythropappa Col. I.c. xxii (1890) 
468. QO. multiflora Col. l.c. xxvii (1895) 387. See also Dame. tqrg 
Var. cordatifolia 7’. Kirk Students’ Fl. (1899) 268.—Leaves orbicular, cordate at 
the base, very coriaceous. Heads broadly obconic; involucral scales densely woolly, 
inner villous at the tips. Florets about 20; those of the ray with long and narrow 
ligules. | | 
Var. angustifolia Cheesem. Man. N.Z. Fl. (1906) 285.—Leaves 2-3} in. long, linear- 
lanceolate to lanceolate or oblong - lanceolate, almost membranous, margins sinuate. 
Corymbs lax, much branched. Heads large, }in. long; rays long and narrow. 
Var. eapillaris 7’. Kirk l.c.—Small, stout or slender, densely or sparingly branched, 
Leaves small, j-1 in. long, ovate or rounded, membranous or subcoriaceous, silky above 
when young. Heads 3-12, in sparingly branched corymbs longer than the leaves; 
pedicels very slender; involucral scales glabrate or slightly villous. Florets 8-12,— —_ 
O. capillaris Buch. in Trans. N.Z. Inst. iii (1871) 212. sce Tamang . 72: 3b. As 
NortH anD SoutH Istanps, Stewart Istanp: Not uncommon from the East 
Cape, Taupo, and Mount Egmont southwards. Sea-level to 4000 ft. November-— 
J anuary. ‘Var. cordatifolia: Stewart Island, 7’. Kirk / Cockayne / Var. angus- 
tufola : Ohinemuri Gorge, 7’. F. C.; Lake Waikaremoana, Sainsbury ! Ngakawa, near 
Westport, P. G. Morgan! Var. capillaris : Mount Egmont, Adams and 7. F. ©, = 
Waimarino Plains and base of Ruapehu, H#. P. Turner / T. F. C., H. Carse! Neon 
Mountains, H. H. Travers! Dall! source of the Poulter River (Canterbury), Cockayne / 
Perhaps the most variable species of the genus, but generally to be recognized in . 
all its forms by the thin white and peculiarly satiny tomentum on the under-surface 
of the leaves. 
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