Cotula. ] COMPOSITAE. 999 
17. ©. linearifolia Cheesem. in Trans. N.Z. Inst. xv (1883) 299.—Small, 
dark-green, rather thick and fleshy, aromatic, sparingly pilose. Stems 
prostrate, branched, ascending at the tips. Leaves alternate, 4-14 in. long, 
narrow-linear cr linear-spathulate, cbtuse, gradually narrowed to the sheath- 
ing base, quite entire, coriaceous, gland-dotted. Peduncles 2-4 in. long, 
slender, terminal, with 4-8 small linear bracts. Heads unisexual, 4-4 in. 
diam.; involucral bracts in about 3 series, linear-oblong, obtuse, with 
purplish scarious margins. Receptacle convex. Florets studded with trans- 
parent glands; female corolla swollen at the base, obscurely tetragonous, 
narrowed above, minutely 4-toothed ; corolla of the males smaller and more 
slender, narrow funnel-shaped, 4-lobed. Achene linear-obovoid, compressed. 
—?P. Kirk Students’ Fl. (1899) 326; Cheesem. Man. N.Z. Fl. (1906) 357. 
Sourn Isranp: Nelson—Raglan Mountains, eastern side of the Wairau River, 
near Tophouse, 7’. F.C. 2000-4500 It. December—January. 
Distinguished from C. pyrethrifolia by the entire leaves. In outward appearance 
it closely resembles Abrotanella linearis. Abundant in the locality in which it was 
originally discovered, but so far has not been found elsewhere. 
18. C. pyrethrifolia Hook. f. Handb. N.Z. FI. (1864) 142.—Stout, rather 
fleshy, aromatic, glabrous or sparingly pilose. Rhizome creeping, often 
branched ; stems prostrate or decumbent at the base, ascending at the 
tips. Leaves alternate, fleshy or coriaceous, }-14 in. long: petiole usually 
* the length, sheathing at the base; blade pinnatifidly cut into 5-8 
alternate narrow - linear to linear - oblong obtuse segments 75-1 In. long. 
Peduneles variable in length, $-4 in., with 1 or several linear bracts. Heads 
unisexual, large, 4-2in. diam.; involucral bracts in 2-3 series, linear- 
oblong, obtuse, herbaceous, with purplish scarious margins. Receptacle 
convex. FHlorets glandular; corolla of the females inflated and truncate 
at the base, 4-toothed at the mouth; of the males funnel-shaped, 4-lobed. 
Achene narrow-obovoid.—T. Kirk Students’ Fl. (1899) 327; Cheesem. Man. 
N.Z. Fl. (1906) 357; Ll. N.Z. Fl. i (1914) t. 108. 
Norta Istanp: Wellington—Tararua Mountains, on Mount Hector, Petrie! B.C. 
Aston! Sour Istanp: Plentiful in mountain districts from the north of Nelson 
and Marlborough southwards through Canterbury and Westland ; apparently less 
common in Otago. 2500-6000 ft. December—February. 
Easily distinguished by the coarse almost glabrous habit, the decumbent or pros- 
trate stems, the deeply pinnatifid leaves with their few linear lobes, and the large 
strictly unisexua] heads. Like many other species of the genus, it is highly aromatic, 
especially when bruised. | 
19. C. perpusilla Hook. f. Handb. N.Z. Fl. (1864) 143.—Often forming 
broad patches, more or less silky in all its parts. Rhizome much 
branched, creeping, rigid and wiry, 2-9 in. long or more; branchlets short, 
erect, leafy. Leaves tufted, silky on both surfaces, 41 in. long, lnear- 
oblong or linear-obovate, deeply pinnatifid; segments close-set, some- 
times slightly recurved, deeply serrate on the upper edge or entire. 
Peduncles short, stout, rigid, silky, }-3in. long. Heads unisexual ; males 
4-¢ in. diam.; involucral bracts in 1 or 2 series, broadly oblong, silky, 
with broad purple scarious margins. Florets numerous, eglandular, funnel- 
shaped. Female heads larger, }-4in. diam.; involucral bracts in 3-4 
series, larger and broader than in the males, incurved over the florets and 
often concealing them. Flerets numerous; ccrolla ovoid, inflated at the 
base, contracted at the minutely toothed mouth. Achenes somewhat 
