146 MISS L, S. GIBBS ON THE FLORA AND PLANT FORMATIONS 
PovzorziA VIMINEA, Wedd. in DC. Prod. xvi. 1. 228. 
Mensangau, 3000’, in * Lalang” clearings. Feb. 4.3033, 9. 3034. 
Distrib. Malay Peninsula, Java ; China and Japan ; Indo-China to India. 
PIPTURUS ARGENTEUS, Wedd. in DC. Prod. xvi. 1. 235". 
Apin Apin, 1500', a small tree in sec. forest. Fl. Feb. 2982. 
Distrib. Borneo (Sarawak). Java, Timor, Timor Laut, Amboina, and 
Aru Islands ; New Guinea to N.E. Australia and Polynesia. 
AMENTACEAS, 
QUERCUS HAVILANDII, Stapf in Trans. Linn. Soe, ser. 2. Bot. iv. (1894) 
231, pl. 18 4. 1-4. 
Kinabalu, 9500’, in sheltered low forest below Pakapaka. d. Feb. 
4264. 
Distrib. Borneo (B. N. B. Kinabalu, 9000-10,500', Haviland). 
A small compact tree, 2 m. in height. 
ORCHIDACE/E. (R. A. RorrE.) 
The Orchids collected by Miss Gibbs number 48 species, of which twenty 
are new, including one new genus. In working them up two others 
colleeted on Mt. Kinabalu by Haviland were found, and as these had been 
named by Dr. Kriinzlin but not described they are included in the present 
paper, which thus deals with fifty species, of which 22 are here described for 
the first time. There is also one in fruit only, which may or may not be 
distinct. Of the fifty species 42 were collected on Mt. Kinabalu; of 
ihese no fewer than 23 are not yet known from elsewhere, and five others 
are only known from Borneo. 
It may be interesting to compare the recent collection with that made 
by Dr. Haviland eighteen years earlier. Ridley enumerated 24 species 
as collected by Dr. Haviland, of which 18 (or a proportion of 75 per cent.) 
were endemic. To these must be added two species not enumerated by 
Ridley, making a total of 26, of which 20 were endemic. Miss Gibbs has 
only re-collected seven of these, but on the other hand she has made 35 
additions (this only includes those actually collected on Mt. Kinabalu itself), 
so that if the two collections are added together we get an aggregate of 
61 species found on the mountain, of which 53 (or a proportion of about 
80 per cent.) are not known from elsewhere. 
* MICROSTYLIS KINABALUENSIS, Rolfe, sp. nov. 
Rhizoma repens. Folia petiolata; limbus ovatus, acutus, submembranaceus, 
2-4 cm. longus, 1-2 em. latus, multinervis ; petiolus 1-2 em. longus, basi 
