222 
The Transvaal material is somewhat off type, approaching 
D. basuticus, Burtt Davy, in some of its characters. 
6. D.. mooiensis, Williams in Journ. Bot. xxvii. P 199 
(1889) !; D. Nelsoni, Williams, in Journ. Bot. 1889, p. 200 
RanGE : High-veld of the Transvaal. 
TRANSVAAL: Potchefstroom Distr., Mooi River Nelson 334! 
type, Wonderfontein on the Mooi River, Nelson 554! type of 
D. Nelsoni, Williams; Witwatersrand, Orange Grove Rogers 
22386!; Pretoria Distr., near Pretoria Burtt Davy 724!, Janse in 
T.M.H. 2808? ty Heidelberg Distr., Heidelberg Leendertz 1020! I; 
Standerton ? Rogers 18777 !. 
GRIQUALAND East: Near Kokstad, 1100 m. T'yson 1119! 
Nata: Between Greytown and Newcastle Wilms 1863 ! 
I can find no specific difference between the two plants named 
as above by Williams, though he places them in separate sections. 
The accepted name was originally published by the author as 
‘“moviensis ’’ from the “‘ Movi River,” obviously a mistake for 
Mooi River, due to a badly written label, and therefore open to 
correction. 
This species is the High-veld ally of D. Zeyheri, Sond. 
var. dentatus, Burit Davy, var. nov., a forma typica petalis 
dentatis roseis albidisve, calycis brevioribus et foliis basalibus ” 
longioribus, differt 
TRANSVAAL : Brana Distr., Rayton Rogers 12915 !, type. 
17. D. Zeyheri, Sond. in Fl. Cap. i. 124 (1860)!; D. Colensoi, 
Williams in Journ. Bot. xxiii, 344 (1885)!; D. mecistocalyz, 
Williams in Journ. Bot. xxvii, 199 (1889) !. 
RANGE: Bush-veld of the Transvaal. 
TRANSVAAL: Pretoria Distr., Magalidabeny Zeyher 79}, 
Burke 264!, types; Wonderboompoort Rehmann 4581!; Brits 
Stent in T.D.A.H. 6117!; near Pretoria McLea in herb. Bolus 
5587!; Aapjes River W. 'N elson 555! (type of both D. Colensoi 
and D. mecistocalyx) ; Premier Mine Rogers 25216!; Rustenburg 
Distr., Kloof of Magaliesberg Nation 282 !, Collins 132! !; Middel- 
burg Distr., Wilge River Schlechter 3743 |: Waterberg Distr., 
between Klippan and Elands River Rehmann 5015!; Pietersburg 
Distr., Pietersburg Bolus 11042!; Lydenburg Distr., ’ Elandspruit- 
bergen Schlechter 3856!, Lydenburg Wilms in T.M.H. 6464!, 
Pilgrims Rest Greenstock !. 
Nelson notes: “Rare”; “flowers purest white, 2} in. 
diameter, much fimbriated. a "Williams cites Nelson’ 8 plant as 
the type of his D. Colensoi, but erroneously gives “ coast of 
Natal ”’ as the type locality. He correctly described the flowers 
as white, but included the plant in the Section Barbulatum, 
which he defined as having flowers “ rosei purpureive ’ 
A specimen collected by Rogers (No. 22325 !) in the Kloof at 
Rustenburg, Transvaal, has been referred to the S.W. Cape 
