128 Alfred J. Ewart : 



should be exercised to avoid creating useless synonyms by con- 

 clusions 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 vai-iety of A. apiculata, R.Br. 



AlZOON INTERMEDIUM, Diels, and AlZOON GLABRUM, n. sp. 



(Aizoaceae). 



The former sipecies is distinguished by Diels from A. 

 zygophylloides (F. v. M.), by the shape of the leaves, longer 

 pedicels and nan'ow calyx lobes. It comes very close to i?ome 

 nearly smooth stemmed specimens included by F. v. Mueller in 

 A. zygophylloides, and may ultimately prove to have not more 

 than ai varietal significance. It is, however, quite distinct from 

 Luehmann's undescribed xVizoon glabrum. This is a rather small 

 plant, spreading more or less from a single root, the slender 

 wiry glabrous stems, 2 to 6 inches high, simple or branching 

 one or more times, bearing terminal fiowers 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 neai'ly ^ incli 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. Capsule 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. 



AlZOON KODWAYI, n. S]). 



Plant 3 to over 8 inches high, stems more or less decumbent 

 at base, and spreading. Leaves in opposite pairSi, soft, fleshy, 

 with scattered wairty, transparent tubercles, ovate or linear, 

 mostly ^ inch long, but beneath each flower usually a larger 

 paiir more pointed and with broader bases. Plant glabrous 

 throughout, the stems more slender than A. (piadrifldum, but 

 stouter than A. glabrum. Flowers large terminal, 1 to 1^ inches 



