NOVITATES AFRICANAE 
Mesembrianthemum ausense, L. Bolus (§ Ringentia), ab omnibus ceteris sec- 
tionis petalis albis, stylis 10 differt. 
Folia obovato-spathulata, supra fere plana, subtus e medio carinata, 
marginibus carinaque 3 — 6-dentata, dentibus patentibus, glauco-viridia, 
ad 3 cm. longa, 1-3 — 1-5 cm. lata, 1 cm. diam. ; flores solitarii, breviter 
pedunculati, 4-3 cm. diam. ; calyx turbinatus, segmentis 4, inaequalibus, 
duobus carinatis, 1-5 cm. longis, duobus ovatis acutis, late membra- 
naceo-marginatis, 1 cm. longis; petala linearia obtusa, ad 2 cm. longa, 
0- 2 cm. lata; stamina numerosa collecta, apice subdiffusa, 0-8 — 1 cm. 
longa, filamentis albidis ebarbatis, antheris 0-1 cm. longis, lobis luteis, 
connectivo notate conspicuo, viridi lucidoque; discus annularis crenu- 
latus; ovarium supra planum, 0-5 cm. diam., stylis 10, filiformibus, 
1- 1 cm. longis, basi pro 0-2 cm. longitudinis connatis. 
South-West Africa : Aus, C. W. Lewis (National Botanic Gardens, 
No. ; G. C. Phillips [id. No. 
A very distinct species in the section Ringentia by reason of the 
white petals and the ten styles. 
Described from a specimen which flowered at Kirstenbosch in June 
1919. 
' M. Vermeuleniae, L. Bolus, epapulosum, nanum glabrum caudice tuberoso, 
ad 1-5 cm. diam., apice ramoso, ramis abbreviatis crassis, ramulis con- 
fertis saepissime 4-f oliatis ; folia fere erecta vel patenti-incurvata, basi 
semiteretia, supra medium valde compressa carinataque, acuta vel 
acute acuminata, glauco-viridia, saturate viridi-punctata, 2 3 cm. 
longa, basi 1 cm., medio 0-6 cm., apicem versus 0-3 cm. lata, 0-4 
0-7 cm. diam. ; flores solitarii 5-meri, 2-5 — 3 cm. diam. ; calyx tur- 
binatus, segmentis inter se fere aequilongis, ovato-lanceolatis acutis, 
tribus membranaceo-marginatis, ad 09 cm. longis; petala 2 3-seriata 
linearia obtusa, basin versus parum angustata, alba, inter se fere aequi- 
longa, vel 1 — 2 intima multo breviora; ad 1-1 cm. longa, 0-2 cm. lata, 
stamina multi-seriata, mox diffusa, 0-3 — 0-4 cm. longa, filamentis ba i- 
batis, antheris luteis, staminodiis 2 — 3-seriatis, apice recurvis, glandular 
discretae, crenulatae; ovarium supra valde convexum, stylis erectis, 
demum patulis, subulatis acuminatis, ad 0-45 cm. longis. 
Kalahari Region: Griqualand West; Niekerk s Hoop, April 19^1, 
M. Wilman (Bolus Herbarium, No. 15194). 
B. H. 
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