132 ROSACE. [Acena. 
Kermapsec Istanps, NortH anp SoutH Isuanps, STEwarT ISLAND, 
CuatHAm ISLANDS, AUCKLAND, CAMPBELL, ANTIPODES, AND MacquaRriz ISLANDS: 
Abundant throughout, from sea-level to 3500ft.; the var. pilosa usually sub- 
alpine. Piripiri. November-February. Also in Australia, Tasmania, 
and Tristan d’Acunha. 
A well-known plant. The heads or ‘“‘ burrs” are often troublesome to sheep- 
farmers from the readiness with which they adhere to wool. 
3. A. adscendens, Vahl. Hnum. i. 297.—Stems stout, pro- 
strate, much branched; branches leafy, erect or ascending at the 
tips, glabrous or sparingly hairy. Leaves 2—4in. long; leaflets 4-6 
pairs, 1-4in. long, ovate or obovate or rounded, obtuse, mem- 
branous, often glaucous, coarsely and deeply toothed sometimes half- 
wavy to the midrib; teeth often tipped with a pencil of silky hairs. 
Peduncles stout, strict, 4-8 in. long, glabrous or slightly pubescent ; 
heads 4—?in. diam. in fruit. Calyx- tube silky, obconic; lobes 4, 
persistent. Stamens 2. Stigma fimbriate. Fruiting-calyx narrow- 
obconic, 4-angled; bristles 4, short and stout, barbed at the tip. 
Achene tapering to both ends.—Hook. f. Fl. Antarct. i. 10; 11. 268, 
t. 96; Handb. N.Z. Fl. 56; Kirk, Students’ Fl. 133. 
SourH Isnanp: Not uncommon in mountain districts, altitude 2000- 
5000ft. Macquarie IsnAnp: At sea-level, Fraser, Prof. Scott. 
This is very closely allied to A. sanguisorbe, but can usually be distin- 
guished by the more glabrous habit, rounder glaucous and more deeply toothed 
leaflets, long stout peduncles, and short stout bristles. The stems and 
peduncles are often reddish-purple. 
4. A. microphylla, Hook. f. Fl. Nov. Zel. i. 55.—Stems pro- 
strate, much branched, often forming extensive patches ; branches 
short, slender, glabrous or nearly so. Leaves 3-2 in. long, glabrous 
or sparingly silky, often glaucous, membranous; leaflets 3-6 pairs, 
+-1in. long, broadly ovate or rounded, deeply inciso-serrate or 
crenate, cuneate or rounded at the base. Heads globose, variable 
in size, 4—3in. diam. in fruit, on slender peduncles 1-3 in. long or 
sessile. Calyx-tube silky or glabrous, broadly turbinate; lobes 4, 
persistent. Stamens 2. Fruiting-calyx short, broader than long, 
4-angled, slightly winged at the angles; bristles 4, stout, spread- 
ing, bright-red, often wanting. Achenes usually 2, bony.—Handb. 
N.Z. Fl. 56; Kirk, Students’ Fl. 134. 
Var. depressa, Kirk, l.c. — Branches closely appressed to the ground. 
Leaves smaller. Heads few-flowered, sessile or very shortly peduncled. — 
A. depressa, Kirk in Trans. N.Z. Inst. ix. (1877) 548. 
Var. inermis, Kirk, 1.c.—Leaves longer, 1-4in. long, usually glaucous ; 
leaflets 4-4in. Fruiting-calyx without bristles.—A. inermis, Hook. f. Fl. Nov. 
Zel. i. 54; Handb. N.Z. Fl. 57. 
NortH Anp SourH Isnanps: Not uncommon in mountain districts from 
the East Cape southwards, Sea-level to 3500 ft. November—January. 
A very variable plant. I agree with Mr. Kirk in uniting A. depressa and 
A. inermis with it. The length of the peduncle is a very variable character, 
and heads with or without bristles can easily be found on the same plant. Mr. 
Kirk states that the achene is solitary, but I find usually two in each fruiting- 
calyx, as described by Hooker. 
