Acena. | ROSACEH 131 
** Fruiting calyx broader than long. 
Glabrous or sparingly silky. Heads pedunculate or sessile ; 
spines bright-red, rarely wanting. . 4. A microphylla. 
Usually densely villous. Leaves pale, often hoary. Heads 
sessile ; spines usually yellow x0 Ne .. 5. A. Buchanan. 
B. Calyx-tube much compressed, spineless. 
Perfectly glabrous. Heads large, 4—} in. ot On A. glabra. 
A. Huttoni, R. Br. (ter) in Trans. N.Z. Inst. xvi. (1884) 382, is the Kuro- 
pean Poteriwm sanguisorba, Linn., which is sparingly naturalised in several 
parts of the colony. 
1. A. nove-zealandie, 7. Kirk in Trans. N.Z. Inst. iii. (1871) 
177.—Stems prostrate, much branched, stout and woody at the 
base; branches ascending or erect, leafy, silky or nearly glabrous. 
Leaves 14 Te long, usually glabrous above, silky beneath; leaflets 
4-7 pairs, 4 4-3 in. long, oblong or elliptical, rounded at both ends, 
coarsely serrate. Peduncles stout, terminating the branches, 2-6in. 
long; heads globose, large, ree in. diam. in fruit. Calyx-tube 
narrow, obconic, 4-angled, pilose; lobes 4, persistent. Stamens 
2-3. Fruiting-calyx narrow, 4-angled, slightly winged at the 
angles; bristles 4, very long, reddish-purple, barbed at the end. 
Achene coriaceous, narrow linear-oblong, widest in the middle, 
tapering to both ends.—Students’ Fl. 183. A. macrantha, Col. im 
Trans. N.Z. Inst. xxiii. (1891) 383. 
Norte snp Souru Istanps: Not uncommon from the Auckland Isthmus 
southwards. November—January. 
Very closely allied to A. sanguisorb@, but a larger and coarser plant, with 
larger heads, longer purplish-red spines, and a longer and narrower achene. 
Mr. Kirk distinguishes a var. pallida, with paler foliage and the spines often 
greenish. 
2. A. sanguisorbe, Vahl. Hnum. 1. 294.— Stems prostrate, 
much branched, often woody at the base; branches leafy, ascending 
at the tips, more or less silky. Leaves very variable in size, 1-3 in. 
or more; leaflets 3-6 pairs, +2 in. long, oblong or obovate or almost 
orbicular, membranous, deeply toothed or serrate, glabrous or 
nearly so above, silky-hairy beneath, the upper pairs usually longer 
than the lower. Peduncles slender, 2-6in. long; heads globose, 
48in. diam. in fruit. Calyx-lobes 4, persistent. Stamens 2. 
Stigma broad, fimbriate. Fruiting-calyx 4-angled, with a long 
barbed bristle at each angle. Achene narrow, broadest below the 
middle, tapering to the apex.—A. als Precur. nu. 566; Raoul, 
Choiw, 49; Hook. f. Fl. Nov. Zel. i. 54; Handb. N.Z. Hl. 56; 
Benth. Fl. Austral. ii. 434; Kirk, Students Fl. 133. Ancistrum 
anserinefolium, Forst. Char: Gen. 4. <A. diandrum, Forst. Prodr. 
n. 52. 
Var. pilosa, Kiric, 1.c.—Leaves white with appressed silky hairs; teeth 
coarser.—Ancistrum decumbens, Gaertn. Fruct. i. 163, t. 32. 
