OF MT. KINABALU AND BRITISH NORTH BORNEO. 127 
NEPENTHES Lown, Hook. f. in Trans. Linn, Soc. xxii. (1859) 420, t. 71. 
r Kinabalu, Maraiparai spur, 5000-7000, in mossy forest. Feb. 4084. 
Distrib. Borneo (B. N. B. Kinabalu, 6000-8000', Whitehead; down to 
5000', Burbidge). 
* Also abundant from the mossy forest on the South-Western spur to 
above Kamburangau, 7000-8000'. This species is similar in habit to 
N. Edwardsiana.” 
*NEPENTHES sp. 
Kinabalu, above Kamburangau, 8000-9000', in mossy forest and on the 
open olivine serpentine formation. Feb, 4300'. (Pitcher only.) 
All available morphological details suggest that this is a hybrid between 
N. villosa and N. Rajah. Of this form only one pitcher was collected. 
At first sight it resembles rather closely a marked variety of N. villosa. 
But in collecting it Miss Gibbs was struck by the peristome, which was 
greatly more expanded than is typical of that species. A detailed study 
has caused me to view it as almost surely a hybrid between .V. villosa and 
N. Rajah. Though the latter species was not observed during the ascent, 
it is one of the celebrated types peculiar to the mountain, and specially to 
the high zone where N. villosa grows. It might well therefore contribute to 
the origin of the present specimen, since cross-pollination by insects is typical 
for Nepenthes. Alike in the shape of the pitcher and of the peristome ridges 
and teeth, in the shape and distribution of the honey-glands of the lid, in the 
very shallow conducting surface, in the glistening circular zone round the 
upper part of the detentive surface (that is alone represented, though wider, 
in the species JV. villosa), also in the distribution and shape of the glands of 
the detentive surface, it exhibits characters that are evidently compounded 
from both species already named. When we remember that Burbidge has 
already described JV. Harryana [Gard. Chron. n. s. xvii. (1882) 50] as a natural 
hybrid between N. villosa and N. Edwardsiana, which I have found in its 
minute structure to confirm such a conclusion, it seems not unlikely that the 
specimen now under discussion may also have a hybrid origin. We hope to 
learn more in the future regarding such suggestive and at times puzzling 
forms. | 
PIPERACEAE (C. DE CANDOLLE.) 
PIPER, Linn. 
PIPER Bere, Linn., var. SIRIBOA, C. de Cand. in Prod. xvi. 1. 359, 
Tenom, 700’, in sec. forest. Fl. Jan. 2847. 
Distrib. Java ; India and Ceylon. 
« Siri utan ” of the natives. 
