rOIATODIACE/E. 



301 



dor surface of 

 the lamina 

 in the latter, 

 is uot very 

 clearly pro- 

 ved to be 

 constant in 

 the Formosa n 

 species. But, 

 the two ere- 



Fig. 12O-C, Leptochilus Kanashiroi UAYATA; a, a portion of tlu- 

 sterile frond ; b, a portion of the fertile frond. 



iiera are clearly separable each other by the veins, which in Polybotrya are all 

 free in both fertile and sterile fronds, but are anastmosing in Leptoclulus. The 

 distinction of the two genera defined on this basis is the clearly seen in the 

 species just described and Polyboirya dupliccdo-serrata HAYATA appearing in p. 

 305 of this volume. 



Leptochilus virens (WALL.) C. Cim. Ind. p. 20. 



Gymnoptcris virens BEDD. Fern. South Ind. t. 202. 



HAB. Banchoryo : Mt. Naiyezan, leg. U. MORI et Y. SHIMADA, Dec. 1907. 



The species is not well defined by descriptions; the figures given in BEDD. 

 Fern. South Iiid. t. 202 and HOOK et GR. Ic. Fil. t. 221, are considerably 

 different. Whether the plant mentioned here is really G, virens or not is 

 entirely questionable. 



Lindsaya DRY. 



Lindsaya orbiculata (LAM.) METT.; MATSUM. ct HAYATA Enurn PI. Formos. 

 p. 596, form, lobulata. 



HAD. Inter Kemogau et Rahao, leg. TAKEO ITO et S. FUJII, Nov. 1914. 



The form is quite different from the original form of L. orbiculata in hav- 

 ing obconical cuneatc pinnules which are usually lobed at the margin. But, 

 the gradually transitional forms between this and the type have led me to 

 regard this fern to be a mere form of the latter. 



Microlepia PRESL. 



Microlepia hirsutissima HAYATA sp. nov. (Fig. 121 A-B). Khizorna repens 

 supra 2-seriatim alternatim dense frondigerum subtus dense radiciferum dense 



