BOTANY OF SOUTHERN RHODESIA. 463 
VERBENACES. 
DURANTA PLUMIERI, Jacq. 
Matopo Hills, old Kaffir lands, by stream. Fl. and Fr. Oct. 
280. 
Distrib. Widely spread in Tropical and South-east Africa. 
VITEX FLAVESCENS, Rolfe, var. nov. PARVIFLORA. Å typo 
distat præcipue floribus minoribus et lacteis; calyce 53 mm. longo, 
hujus lobis 2 mm.; corolla tubo 8 mm. longo, vix 3 mm. lato, 
eujus lobis 8 mm. longis; filamentis pubescentibus. 
Hab. Victoria Falls, veld. Fl. Sept. 135. 
This plant has been considered a synonym of V. Mechowii, 
Giirke, from which, among other points of difference, it is at 
once distinguished on account of its leaves being 3-foliate. 
It is a shrub 1:5-2 m. high. 
VITEX ISOTJENSIS, sp. nov. 
Arbor, ramis glabris, junioribus flavo-pubescentibus; foliis 
longe petiolatis, 5-foliatis, foliolis breviter petiolulatis (petiolulis 
ut petioli flavo-pubescentibus) obovatis, basi obtusis vel cuneatis, 
rotundatis, obtusissimis vel etiam retusis, utrinque griseo-velu- 
tinis, nervis secundariis cirea 9-10, supra planis subtus prominen- 
tibus; cymis folia subequantibus, peduneulatis, ut bracteæ 
subulate dense flavo-pubescentibus; floribus parvis; calyce 
iubuloso infundibulari, obscure bilabiato, 5-dentato, 3 lobis 
anticis quam 2 postieis majoribus, extra flavo-pubescentibus ; 
corolla breviter tubulosa, extra pubescente, tubo leviter ineurvo 
quam calyx paullo longiore, lobis posticis lateralibusque brevibus, 
antico maximo, orbiculare, crenulato; staminibus styloque sub- 
inclusis.—Ab V. Hildebrandtii, Vatke, distat inter alia foliolis 
obovatis, apice rotundatis, bracteis flores non zequantibus, calyce 
breviori et obscure bilabiato. 
Hab. Matopo Hills, top of Isotje, in cleft of granite. Fi. 
Oct. 236. 
A tree 7 m. high. 
The small cymes are from 3-5 cm. broad, the petioles T 6-7 cm. 
long and the petiolules +1-2 mm. long; the three central leaflets 
are +3°5 to 5:5 em. long and +2°6-4 em. broad, the two lateral 
+3 em. long and 2'5 broad, but often very much smaller, the 
median and lateral veins are very pilose and stand out well in a 
dried state on the under surface; the small cymes are 3-5 em. 
