48 THE FERNS OF BORNEO. ; 
rather narrow, interrupted. Indusium persistent. I 
have only found it on one occasion. 
S 
. gomphophyila. Baker in Ferns discovered or described sine 
1874. ‘ Borneo, Sir Hugh Low.” 
L. trapeziformis, Dry. (Syn. Fil. xx. 17.) Not uncommon 
probably only the mature form of L. scandens Hk. 
Distribution: Tropical America, Malaya, Ceylon. 
L. borneensis, Hk. M.S. 8. (Syn. Fil. xx. 18.) Mt. Matane 
and elsewhere. 
Distribution: Malay Peninsula in Mountain Forests. 
L. Natune. Baker in Kew Bulletin Feb. 1896. p. 40. Found by 
Mr. Ernest Hose in the Natuna Islands. 
$ Isoloma. 
L. (Iso.) indurata. baker in Jour. Bot. 1888, p. 324, Niah, 
Baram Residency, Sarawak and Mt. Kinabalu, North 
Borneo, Dr. Haviland. 
L, (1so.) divergens, Wallich, (Syn. Fil. xx. 29.) Common. 
There are two forms often found in the same _ locality, 
both in Borneo and the Malay Peninsula but not in any 
way running into one another. In the typical form the 
two edges of the pinne are very nearly parallel. In the 
other form the base is half as long as the pinna, the up- 
per surface is cultrate, curved from the point of the auri- 
cle to the extremity of the pinna, and the underside is 
cut away as in Asplenium resectum. 
Distribution: Throughout Malaya. 
L.( Iso.) lanuginosa, Wall. (Syn. Fil. xx. 30.) Growing 
abundantly with Neprolepis acuta which it so curiously re- 
sembles, on mangroves by the Salak River, Sarawak. 
Distribution: Singapore and Malay Peninsula; Tropical 
Australia, Mauritius, Africa, mouth of the Kongone 
River (Livingstone expedition. ) 
L. (Iso.) trilobata, Baker in Jour. Bot. 1891, p. 107. Mt. 
~~ _Mulu, and Niah, Baram District, Sarawak. 
