Tab. 6908. 
STREPTOCARPUS Donnu. 
Native of the Transvaal. 
Nat. Ord. Gesyeracex.—Tribe Cyrtay prer. 
Genas Srrerrocarres, Lindl. ; (Benth. et Hook. J. Gen. Pi. vol. ii. p. 1023.) 
StrEprocarrvs Dunnii ; molliter glanduloso-pubescens v. tomentosns, folio maximo 
ts egg sessili ovato-oblongo obtuso margine irregulariter lobulato et 
crenato reticulatim venoso inter venas bullato, costa crassa subtus villosa, 
scapis perplurimis confertis seriatim evolutis robustis paniculas maltifloras 
secundifloras gerentibus, floribus 1}-pollicaribus pallide lateritio-roseis breviter 
pedicellatis inclinatis cernuisve, calycis segmentis lineari-oblongis, corolla 
curva tubuloso-infundibulari puberula, lobis brevibus tis ciliolatis 
capsula pollicari tomentosa. 
Strerrocanrrvs, n. sp., Masters in Gard. Chron. vol. xxv. (1886), p- 625. 
This magnificent plant, which is quite the monarch of its 
beautiful genus, belongs to the unifoliate section, along 
with S. polyantha, Hook. (Tab. 4850), S. Saundersii, Hook. 
(Tab. 5251), and several other South African species, in 
all of which (and as far as is known in all the genus) the 
only or principal leaf is the growth of one of the cotyledons 
of the minute embryo. This curious fact was made known 
almost simultaneously by two independent observers ; first 
in 1859 by Dr. Caspary, as mentioned in the “ Botanische 
Zeitung” for that year (p. 240), and then in 1860 by the 
late Mr. Crocker, when foreman of the propagating pits 
at Kew, in the case of S. polyanthus, who published an 
account of it in the Journal of the Linnean Society (vol. v., 
p. 65, t. 4, f£.1—8). The development of Streptocarpus— 
has also been taken up in Germany, and is treated of in — 
an elaborate paper by Hielscher, in Cohn’s “ Beitrage 
(ot ps: 1; t: 1-8). 
Amongst the one-leaved Streptocarpi the nearest ally of 
| 8. Dunnii is 8. Saundersii, which, like it, has small nearly 
orbicular anthers, and glabrous filaments ; S. polyanthus, 
on the other hand, differs widely in the almost hypo- 
 erateriform corolla with long obovate lobes, and especially 
in the large oblong anthers, which, as well as the filaments, 
Nov. Ist, 1886. | as 
