152 Annals of the South African Museum. 



longioribus ; stamina pluri-seriata ; ovarium subconicum, stylis 5, 

 subulatis setaceo-acuminatis ; capsula circ. 1 cm. cliam. 

 Namaqualand : Last outspan before Garies, 6433. 



A glabrous shrub, attaining 2-5 met. in height ; branches erect 

 rigid glaucous smooth, 0-6 cm. in diam., the ultimate branchlets 

 reddish ; leaves connate at base, spreading-incurved, finally widely 

 spreading, semi-terete or sometimes turgidly 3quetrous, obtuse or 

 subacute, mucronulate glaucous, inconspicuously dotted with green, 

 up to 5-5 cm. long, 1-2 cm. in diam. ; flowers 5merous, arranged 

 in open terminal 4-5branched cymes ; peduncles somewhat com- 

 pressed, 0-5-1 cm. long, the lateral ones 2bracteate ; calyx turbinate, 

 the segments almost equal acute, three with membranous margins, 

 0-5-0-6 cm. long ; petals whitish, a little longer than the sepals ; 

 stamens pluri-seriate ; ovary somewhat conical, the styles 5, subulate 

 setaceo-acuminate ; capsule about 1 cm. in diam. 



Described from excellent specimens received in a living state. 

 This is a very distinct species and with no close affinity to any 

 Mesembriantlwmum known to me. Its stature, large semi-terete 

 leaves, spreading cymose inflorescence, and whitish petals exclude 

 it from the sections Verruculata, Haworthiana, and Tumidula. 



The same plant was collected in 1883 at Port Nolloth by H. 

 Bolus (No. 9539), and again in 1897 at Oorkraal by E. Schlechter 

 (No. 10998), but without living material it has hitherto been 

 impossible to deal with it satisfactorily. 



77. M. Sladenianum, sp. nov., annuum glaberrimum, foliis 

 connatis, late ellipticis, valde concavis, floribus 4meris, sepalis 

 exterioribus per anthesin marcescentibus. 



Herba annua glaberrima glauca ramosa, ramis decumbentibus 

 elongatis pallidis, ad - 6 cm. diam., internodiis 2-5 cm. longis, 

 ramulis adscendentibus ; folia basi connata, erecto-patentia, demum 

 reflexa, marcescentia persistentia, late elliptica, interdum apiculata, 

 valde concava, margine saepe rubicunda, 1-5-5-5 cm. longa; flores 

 4meri pedunculati, pedunculis 3natis, 0-7-1-2 cm. longis, laterali- 

 bus 2bracteatis ; calyx clavatus, segmentis primo inter se valde 

 inaequalibus, duo exterioribus bene evolutis, omnino ceteras partes 

 floris obtegentibus, per anthesin marcescentibus, foliaceis, late 

 ellipticis vel suborbicularibus, acutis, 1-1-5 cm. longis, interioribus 

 demum aequilongis, angustioribus ; petala alba, ad 1-5 cm. longa ; 

 stamina staminodiaque multi-seriata, antheris minimis ; ovarium 

 convexum, - 5 cm. altum, stylis 4, linearibus acutis. 



