APOSTASIACEE OF THE MALAY PENINSULA. 217 
Sumatra, Borneo, and Java. In the north, however, above 
Kedah Peak, a number of Tenasserim species, such as Spatho- 
glottis Handingiana, Par. et Reichb. f., Dendrobia of the 
Speciose section, Stauropsis giganteus, Benth., Vanda teres, Lindl., 
appear; and many of the typical Malayan genera, such as 
Claderia, Dipodium, Appendicula and Podochilus become scarce 
or disappear. When this portion of the country is explored, 
I believe we shall find a tolerably clear line of demar- 
cation between the two floras, somewhere between the latitude 
of the Lankawi Islands and Kedah Peak. The flora of this 
latter mountain has a remarkable similarity to that of Mount 
Ophir, far away to the south, and is very different from that of 
the intermediate Perak hills. 
Throughout the peninsula there is an Australian element in 
the flora, chiefly to be observed in the open country, by the 
seashore, or on the tops of the higher hills. This is illustrated 
by the representation of such genera as Casuarina, Lepidosperma, 
Beckea, Leptospermum, Melaleuca, and Gahnia. But the only 
typical Australian genera of orchids are Cryptostylis and Cory- 
santhes ; the former of which is found as far north and west as 
the Himalayas and Ceylon. 
There is no trace here of the African element as illustrated 
by the genera Mystacidiwm, Satyrivm, aud Disperis in the Indian 
flora. 
Of the 87 genera as yet known from this region, 9 are common 
to both hemispheres, viz., Microstylis, Liparis, Bulbophyllum, 
Calanthe, Polystachya, Vanilla, Pogonia, Habenaria, and Cypri- 
pedium. Four others occur through India as far west as Africa, 
viz., Eulophia, Acampe, Oorymbis, and Zeuxine. Fifteen are 
confined to the Malay Peninsula and archipelago, and are 
absent from the Indian region, viz., Claderia, Platyclinis, 
Dendrochilum, Chrysoglossum, Grammatophyllum, Bromheadia, 
Plocoglottis, Microsaccus, Adenoncos, Vrydagzynea, Cystorchis, 
Dossinia, Hylophila, Dilochia, Oxyanthera; while Hrmaria is 
also found in China, Lecanorchis in Japan, and Corysanthes and 
Cryptostylis in Australia. The remainder occur also in India, 
with the exception of Leucolena, Renantherella, and Ascochilus, 
which have as yet been only met with in the Malay Peninsula. 
Native Names.—The Malays call all the epiphytic species 
generically “ Angrek,” or “ Sakat.” The latter name, however, 
is applied also to a number of other epiphytic plants, such as 
