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li. H. COJIPTON; PTEHIDOPHYTA. -437 



division into a northern '^ Malayan*' region and a southern "Australian'' 

 region is mainly a result of the Tact that climate and soil faVour the prepon- 

 derance o£ tropical Forest in the north and of a more subtro[)ic.il scriih 

 vegetation in the south; so that '^Malayan" species, on the \vh;)le, find 

 themselves more at home in the "Xordhezirk" and *' Australian '/ species 

 in the " Siulbezirk." 



FILICALES. 



HYMEXOPHYLLAOE.l^:. 



11 YMKNOPiii-LLUM CKisPATUM WiiW. var. MINUS Hook. Ignamhi ; creeping 

 on rocks near stream ; gneiss ; 300 It. 1597. North India, Malaya, Australia, 

 New Zealand, Antarctic Islands. 



II. Dkplanchki Mett. Ignamhi ; frequent creeping over rocks and trunks ; 



2500-4200 ft. 1553. 



II. DIMIDIATUM Mett. Mt. Mou ; on tree-trunks in cloud^forest ; 3700 ft. 



482 



-k'- ^-^ Art a 



II, Le Hatil Rosenstock. Ignamhi ; on tree-trunks in moist forest; 



3800 ft. 1651. 



II. MNIOTDES Baker, forma AMPLIOK li. H. Comptoii, form. nov. Ignamhi; 



on bark of forest trees ; 300 ft. 1G34, 1831. Deplanuhe 1 (summit of Mr. 

 Mou, 12ti0 m., on the trees). Balansa 2702 (Mt. Mou, 1150 m. ; mossy 

 trunks). 



Baker incorrectly descrihog Deplanclie's plants as having '' .segments all 

 quite simple" ; some, hut not all, of Deplanclie's specimens in Herb. Kew. 

 have some of the lower pinnae forked inio two equal paits. In my s[)eciinens 

 many of the lower pinnoo are dichotomous ; nioreoverj the fronds, which are 

 larger than in Doplanche's or Balansa's gatherings, arc light green, whereas 

 Baker describes the fronds as being dark brown. It seems proper to name 

 this form distinctively, the type of the species being regarded as the small 



brownish niider-developed plant with simple lower pinnaj to which Baker's 

 description applies. 



H. lioLAXDi-PKiNCiPis Roscnstock (ex descript.). Mt. Panie; creeping 

 over rocks and trunks in forest ; 4000 ft. 1822. 



Franc's orifjiniil plants, tlie snhjcct of Rosenstock's descriplion, wero 

 g:itliorcd in the sanio district — ''in moute Tao, 700 in. alt/' Tlicy were 

 stcriloj but Rosenstock described tlioni as a species of Tlymenophjllum. This 



LINIS". JOURN. — BOTANY, VOL. XLY. 



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