Lepidiui. | CRUCIFERAE. 473 
leaflets sometimes stalked, finely and sharply serrate or laciniate on the 
upper edge ; teeth irregular, sometimes piliferous ; petiole sheathing at the 
base. Cauline leaves usually few, sometimes absent, oblong-spathulate to 
linear, sessile or shortly petiolate, entire or serrate. Flowers very numerous, 
minute, in long and slender terminal racemes. Petals wanting. Stamens 4. 
Pod very small, orbicular, shorter than the slender pedicel, winged above, 
minutely notched; style scarcely longer than the notch.—Students’ £1. 
(1899) 37; Cheesem. Man. N.Z. Fl. (1906) 40; Thellung Monog. Lepidium 
(1906) 315. TT. S7.052%) &3, 
Var. minor Cheesem. in Trans. N.Z. Inst. xliii (1911) 175.—Small, depressed, 
thick and fleshy, seldom more than an inch or so in height. 
Norra Istanp: Both the type and var. minor on Kapiti Island, off Cook Strait, 
B. C. Aston! The var. also occurs on the gravel beach of Titahi Bay, near Wellington. 
Sourn Istanp: Usually near the sea; Oamaru, Hampden, Awamoko, Weston, 
Orepuki, Petrie / Cape Whanbrow, Awamoa, Dog Island, Ruapuke, 7. Kirk / Waipapa 
Point, Cockayne. Abundant on gravelly beaches in Southland, Crosby Smith. 
November—January. 
A distinct but highly variable species, easily recognized by the minute orbicular 
pods. Mr. Kirk’s var. australe, which he first published as a species (Trans. N.Z. 
Inst. xiv (1882) 381) but afterwards reduced to the position of a variety, appears to 
me to be a mere state with the stems more erect than usual and with much more 
numerous cauline leaves. 
7. L. Kawarau Petrie in Trans. N.Z. Inst. xvii (1885) 270.—Diocecious, 
erect or diffuse, glabrous or slightly hairy, 6-12in. high or more. Stems 
ieafy, much branched above. Radical leaves numerous, 3-5 in. long, linear- 
oblong, pinnatifid or pinnate with a broad rhachis; leaflets rather distant, 
iinear, entire or with 1-3 linear lobes on the upper edge, rarely on the lower 
as well; petioles sheathing at the base. Cauline leaves many, lower like 
the radical but sessile, gradually passing into the uppermost, which are 
natrow-linear, entire. Racemes very numerous at the ends of the branches, 
forming a much-branched panicle. Flowers small. Petals apparently 
wanting in both sexes. Stamens 4-6. Fruiting-pedicels spreading or 
ascending, rather longer than the pods. Peds ovate or ovate-oblong, notched 
at the apex; style slightly exceeding the notch—T. Kirk Students’ F'l. 
(1899) 36; Oheesem. Man. N.Z. Fl. (1906) 41. L. sisymbrioides subs. 
Kawarau Thellung Monog. Lepidiuwm (1906) 314. 
Var. dubium 7’. Kirk I.c.—Taller, much more hairy, almost scabrid; branches 
few, long, lax. Cauline leaves shorter and broader, pinnatifid. Petals present in the 
male flowers. 
Soutu ISLAND: Otago—Kawarau River, Cromwell, Petrie/ Var. dubtum: Near 
. ’ =) 
Duntroon, Petrie / November—December. 
Allied to L. Matau, with which it entirely agrees in the flowers and pods. It differs 
in the greater size, branched leafy habit and almost glabrous leaves, which are much 
larger and have long and narrow toothed pinnae. The var. dubiwm has a distinct 
appearance, but barely seems entitled to specific rank. Thellung, in his monograph 
of the genus, reduces both the species and the variety, together with L. Matau, to the 
well-known £. sisymbrioides, a view with which I cannot concur. 
8. L. Matau Petrie in Trans. N.Z. Inst. xix (1887) 323.—Dioecious, 
erect, hoary with short scabrid hairs, 2-5in. high. Root stout, woody. 
Stems one or several from the root, stout, somewhat strict, branched above. 
Radical leaves numerous, coriaceous, scabrid, 1-2 in. long, linear or linear- 
oblong, deeply pinnatifid or almost pinnate ; segments rounded or oblong, 
