A. Thellung: Neues von den afrikanischen Arten der Gattung Lepidium. 87 
20. Casuarina distyla Vent. var. prostrata Maiden et Betche, l. c., 
p. 371. 
A low decumbent shrub forming dense patches several feet in 
diameter and 2 to 4 feet high. Branches nearly as stout as the common 
erect Port Jackson form of the species, but always curved, often almost 
curled, and conspicuously hirsute with hairs arranged in rows along the 
ridges of the branches; teeth of the whorls 8 in all specimens seen, 
long-pointed. Cones sessile or rarely on short stalks, smaller than in the 
erect Port Jackson form and nearly always truncate, the fine points of 
the bracteoles often persistent on the mature cones. Male flowers 
not seen. 
New South Wales: Near the ocean cliffs north of entrance to 
Narrabeen Lagoon, on Narrabeen Shale formation (R. H. Cambage, 
Feb. 1900); New-port to Barrenjoey (R. H. Cambage and J. H. Maiden, 
July 1905). 
This variety is very distinct from the coast-form of C. distyla, so 
common on the Hawkesbury Sandstone formation, but, on analysing the 
characters, we cannot point out a single character not included in 
Bentham's description of C. distyla Vent. (which includes C. paludosa Sieb.) 
in his Flora Australiensis. The spreading habit and curved branches 
occur also in some Victorian and West Australian forms; hairy branches 
are not rare, though we have seen no other form so conspicuously hairy. 
The characters of the cones are quite those of C. distyla, which vary 
from small and truncate in some New South Wales inland forms to large 
and pointed by the protruding rhachis in the Hawkesbury Sandstone 
forms. Though Bentham describes the cones as „sessile or nearly so“, 
strietly sessile cones are very rare in this species; in fact we hawe not 
a single specimen with strietly sessile cones in the large number of 
specimens from all States, except the specimens now described. The 
plant is so uniformly different in appearance from the form of C. distyla, 
which is very abundant in the localities named, that it seems desirable 
to name it. 
A. Thellung, 
Neues von den afrikanischen Arten der Gattung Lepidium. 
(Ex: Mitt, Bot. Mus. Univ. Zürich, XXVI, in: Vierteljahrsschr. Naturf. Ges. 
Zürich, LI [1906], pp. 141—192.) 
1. Lepidium Draba L. subspec. chalepense Thellung, l. c., p. 150. 
L. chalepense L.! Amoen., IV (1759), p. 321; DC., Syst, II (1821), 
p. 530; Prodr., I (1824), p. 203; Boiss., Fl. or., I (1867), p. 357; L. draba . 
8. L., Spec., ed. I (1753), p. 645; Thlaspi chalepense Poir., Dict. encycl., 
. VII (1806), p. 547; Nasturtium chalepense O. Kuntze, Revis., I (1891), p. 937; 
L. Draba var, chalepense Spach ex Steud., Nom., ed. 2, II (1841), p. 27; 
