OF MT. KINABALU AND BRITISH NORTH BORNEO, 209 
RHACELOPUS ACAULIS, Mitt. apud Stapf in Trans. Linn. Soc. ser. 2. Bot, 
„iv. (1894) 258. 
Between Koung and Kabayo, 1000’, on damp bank, in old sec. forest. 
Feb. 3119. 
Distrib. Borneo (B. N. B., Burbidge). 
Dawsoxra ALTISSIMA, Geheeb in Flora, lxix. (1886) 352, = D. superba alior. 
Kinabalu, Kamburangau and above, 8000’, in mossy forest. g. Feb. 
5118. Gurulau spur, above Kiau, 5000’, in high forest. g. Feb. 3992. 
Distrib. Borneo (B. N. B. Kinabalu, Burbidge). 
* Also seen on Maraiparai spur, in mossy forest, 60007” *, 
*DAWSONIA BREVIFOLIA, .l. Gepp, sp. nov. 
tum D. Beccariit, Broth. et Geh., maxime congruit, differt tamen foliis 
magis appressis e basi vaginante erectis haudquaquam geniculatis, lineari- 
lanceolatis acutis ; foliorum lamellis 100 altis, e 6-7 seriebus cellularum 
constructis ; theea juniore erecta, demum horizontali. 
Hab. Kinabalu, 9000’, on exposed serpentine. The male and female plants 
in separate patches. Feb. 3117. 
This is a tall slender dioicous species with short appressed leaves. The 
fertile stems are but little shorter than the sterile, which attain 30 em. The 
leaves are wider (being 0°75 mm. wide) and shorter than those of the New 
Guinea J), Beccarit (compare Geheeb’s account in * Bibliotheca Botanica,’ 
Heft 44, Stuttgart, 1898, p. 14, tab. 12), the cauline measuring 8 mm., 
the comal 14 mm. The leaves also are canaliculate, and their lamelle are 
half again as high as those of D. Beccari, and are crenulate along their 
upper margin, as in that species, The male plant is simple, often repeatedly 
proliferous, 1-6-flowered. The female plant is sometimes divided above, 
bearing 2—4 short branches, mostly fertile. Mature theca horizontal. Seta 
2-2:5 cm. long. 
* These specimens approximate very closely to D. superba, Grev., but tend to have fewer 
horizontal rows of cells in their lamelle. This, however, is a variable character. It is 
convenient to retain Geheeb's name of D. altissima for these Borneo plants, and to regard 
D. superba as a species confined to East Australia, Tasmania, and New Zealand. For to 
suppose that the distribution of JD. superba embraces North Dorneo and excludes New 
Guinea requires a liberal stretch of imagination. The distribution of the other species of 
Dawsonia is quite limited. Six of them occur in Australia, four in New Guinea, and two 
in Borneo. And not one of them appears to be common to any two of these regions, 
LINN. JOURN.—BOTANY, VOL. XLII. P 
