166 MR. H. BOLUS'S CONTRIBUTIONS 
medio triangulari-dilatatum erectum, brachiis linearibus acumi- 
natis planis porrectis, processibus clavatis stigmatiferis subequi- 
longis; ovarium cum pedicello gracillimum, 1:5-2 centim. longum. 
(Ex exempl. unico exsice. Sanderson in herb. meo.) 
Hab. Natal, J. Sanderson, No. 833. 
Habit and appearance of H. dives, Reichb. f., and of H. Kili- 
Habenaria involuta, Bolus. 
l. Flower, side view. 2. Column, petals, and lip. 
manjari, Reichb. f., but the flowers are different from either. The 
arms of the rostellum do not appear to be channelled, as usual, 
to carry the caudicles, but these are probably covered under the 
special process running from the base of the anther-cell to the 
extremity of the rostellary arm. 
HABENARIA Tysont, Bolus, n. sp. (Fig. 4.) Herba gracilis, 
glabra, erecta, spithamea vel pedalis. Folia duo radicalia humi- 
strata, inferum reniforme acutata 3-6 centim. latum, superum 
minus ovatum evidentius petiolatum acutum; caulis bracteis 
lineari-lanceolatis acuminatis, apice setiformibus erectis vestitus; 
racemus laxe 10-18-florus, bractes florales conformes floribus 
nutantibus parum breviores; sepala lateralia ovata acuminatis- 
sima concava patentia, 7 millim. longa; sepalum impar ovatum 
acuminatum concavum, 5 millim. longum; petala bipartita, seg- 
mentis linearibus, posticis sepalo impari adhzrentibus eoque 
equilongis ciliatis, anticis patentibus 8-9 millim. longis ; labellum 
