So7ne Neiv South African Succulents. 
35 
from fogs. This ability of the plant probably accounts for its universal 
occurrence in the desert, even in localities where no other permanent 
vegetation exists. 
Mesembeianthemum namibense, spec. nov. (Sect. Bostellata.) 
Suffrutex pedalis, ramosissimus. Folia in ramulis junioribus ovali- 
trigona, obtusa, papulosa, basi connata ; in adultis ad spinas breves 
reducta. Flores terminales, solitarii, sessiles ex centro foliorum apicalium ; 
sepala 5, cylindrico-elongata, obtusa, papulosa, non-fimbriata. Petala 
alba, linearia, basi connata, sepala haud superantia ; stamina 15-20 ; 
styli 5, filiformes. 
A hemispherical shrublet, from a few inches to a foot or more in diam. 
In summer dark in colour, with no sign of green, as the leaves have 
dropped off. The young shoots appear in winter and spring, bearing 
several pairs of 3-edged, ovate, blunt leaves, joined at their base, mostly 
green, but often reddish. Later on the leaves shrivel up, while the inter- 
nodes between the pairs increase in length and diam., each joint retaining 
the remains of the two leaves as two oppositely standing little spines. 
The branches have a slightly moniliform appearance, but not as distinctly 
as in M. moniliforme. The development of the leaves into spines is some- 
what similar to that of M. Marlothii, with which this species has been 
confused up to the present, as it grows intermingled with it and resembles 
it somewhat, at least in summer. In that species, however, the leaves 
themselves form the joints, which slightly sheath over another, their apex 
only shrivelling and remaining as mucro, while the upper margin of the 
joined pair of leaves remains covered with a fringe of long white hairs 
absent in M. namibense. 
The same difference occurs in the sepals of the flower. They are 
similar to the leaves, viz., blunt and without a fringe, while in the 
other species they bear a mucro and are amply fringed. 
Leaves of the young shoots (free portion) 8-4 mm., joints of adult 
branches 4-5 mm. long and of the same diameter. Flowers shortly 
tubular in shape, hardly opening, petals white, slightly recurved above 
the sepals ; diam. of flower 6-9 mm. 
Frequent in sandy soil of the Namib near the coast as well as further 
inland. Flowering at Angra Pequena in September. Marloth, No. 4686. 
Mesembeianthemum miteatum, spec. nov. Sub-genus Teiquetea. 
(New Sect. Mitrata.) 
Suffrutex pedalis, ramis erectis, angulatis. Folia dua in apice ramorum 
terminalia, pollicaria, basi connata, lateribus superioribus mutue adpressa, 
residuo membranaceo foliorum duorum praecedentium inclusa, corpuscu- 
