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