The Scientific Notebooks of German Orchidologist Friedrich Wilhelm Ludwig Kränzlin

128 Alfred J. Ewart:

should be exercised to avoid creating useless synonyms by conclusions made without such observations in the case of highly plastic genera of this character. It is also doubtful whether the A. Drummondii, Meisn., revived by Diels, represents more than a variety of A. apiculata, R.Br.

AIZOON INTERMEDIUM, Diels, and AIZOON GLABRUM, n. sp. (Aizoaceae).

The former species is distinguished by Diels from A. zygophylloides (F. v. M.), by the shape of the leaves, longer pedicels and narrow calyx lobes. It comes very close to some nearly smooth stemmed specimens included by F. v. Mueller in A. zygophylloides, and may ultimately prove to have not more than a varietal significance. It is, however, quite distinct from Luehmann's undescribed Aizoon glabrum. This is a rather small plant, spreading more of less from a single root, the slender wiry glabrous stems, 2 to 6 inches high, simple or branching one or more times, bearing terminal flowers in loose cymes on short pedicels, one or two pairs of linear leaves being close under the flower, which is sometimes an inch across when fully open, but usually less. Calyx 4 partite, usually divided nearly to the base, enlarging during flowering to nearly 1/2 inch in length, in large, fully-opened flowers, the lobes more or less acuminate, usually lanceolate, but not always of equal breadth in the same flower. Stamens numerous. Styles 4. Capsulo dehiscing into 8 valves. Seeds numerous, almost black, shaped like the head of a mace and covered with small tuberculate spines.

Murchison, R., I. Tyson, 1898; Mt. Caroline, 1891, Miss Sewel; Salt Lakes, Martha Heal.

AIZOON RODWAYI, n. sp.

Plant 3 to over 8 inches high, stems more or less decumbent at base, and spreading. Leaves in opposite pairs, soft, fleshy, with scattered warty, transparent tubercles, ovate or linear, mostly 1/2 inch long, but beneath each flower usually a larger pair more pointed and with broader bases. Plant glabrous throughout, the stems more slended than A. quadrifidum, but stouter than A. glabrum. Flowers large terminal, 1 to 1 1/2 inches

Flora of Australia 129

diameter when fully expanded. Calyx divided to about the middle, the five segments with broad bases and more or less bluntly acuminate tips. Other features much as in A. quadrifidum. Seeds apparently reddish-brown, but otherwise as in A. glabrum.

The absence of any scurfy tomentum at once distinguishes these two species from A. quadrifidum. In addition A. Rodwayi has broader ovate or lanceolate leaves, the calyx is less deeply divided, the flower larger and more bulky at its base. This, with the less deeply divided calyx and the shape of the leaves distinguishes the plant from A. zygophylloides. A. glabrum is told by its glabrous wiry stems, smaller flowers and calyx deeply divided to the base.

I. Tyson, Salt Marsh, W. Australia, 1893; F.A. Rodway, M.B., dried up salt lake, Dedemona, W. Australia, 1907.

ANGIANTHUS HUMIFUSUS, Benth., var. GRANDIFLORUS. (Compositae).

In the last contribution to the Flora of Australia, No. 6, this was erroneously given as a new variety by the accidental omission of a proof correction.

CASSINIA LAEVIS, R. Br. (Compositae)

The record from C. French, Goulburn R., under the above heading, in Contributions to the Flora of Australia, No. 6, should apply to Cassinia arcuata, R. Br., wrongly recorded as C. Theodori, F. v. M.

CONOSPERMUM POLYCEPHALUM, Meisn., var. LEIANTRUM, Benth. (Protoaceae)

Diels and Pritzel1 raise this variety to specific rank as C. leianthum, Benth. The material at the National Herbarium, a part only of which appears to have been examined by Diels and Pritzel, shows conclusively that there is no reason for this change. It is impossible to lay down any clear line of demarcation

1 Fragm. Phyt. Austr. Occid., p. 141