AIZOACEAE 197 



D. Stamens 00 , in bundles; ovary 5-celled ; cells 2-ovuled. (Plate 48.) 

 8 S. A. species (C, W., No.). 1 8. Aizoon L. 



Flor. Cap. 11, 469. 



Tribe III. Mesembrianthemeae. 



Ovary inferior, 2 — 00 -celled. Stamens 00 . Succulent herbs or undershrubs. 



A. Pseudopetals o. Fruit indehiscent, 1 — 9-celled and -seeded, 



often winged. Leaves alternate. 



a. Stigmas equal. 



27 species in S. A. (Plate 48.) 1 9. Tetragonia L. 



Flor. Cap. 11, 460. 



b. Stigmas unequal ; 2 long and papillose, 2 short and without papillae. 



End. 1 species {A. Schenckii). G. Nam. 

 Bull. Herb. Boiss. v (1897) App. in, 79. 



20. Anisostigma Schinz 



B. Pseudopetals 00 , fruit a 5 — 20-celled capsule (rarely pulpy). Leaves 



mostly opposite. 



21. Mesembrianthemum Dill. 



Flor. Cap. 11, 387. 



Mesembrianthemum . Fig marigolds. Vijgebosjes. 



(Plates 49—54.) 



This is at present the second largest genus of South 

 African plants, being surpassed only by Erica, which 

 comprises 470 species [Flor. Cap. Vol. iv, Sect. 1, 1 9 10]; before 

 long, however, it will probably be the largest. The heaths 

 have been gathered continuously for centuries, and new 

 species among them now turn up only from time to time, 

 while every year adds considerably to the number of 

 species of Mesembrianthemum. There are at present 

 nearly 400 species described, but owing to the difficulty 

 of drying and preserving the plants and their occurrence 

 in arid and remote parts of the country, many are still 

 unknown. Even in the well-explored districts of the 

 South numerous new species have been found during 

 the last few years ; and the distant parts are likely to 

 yield many more. As the interest in these singular and 

 often fanciful members of our flora has lately been much 



