Observations on the Flora of Japan. 



{Continued from p< 98.) 



By 



T. Makino, 



Assistant in the Botanical Institute, Science 

 College, Imperial University of Tokyo. 



DRYMOT-flENIUM Makino gen. nov. (Tamitidince— Poly pod i ere — 

 Poly pod iocew.) 



Sori much elongated, linear, simple, continuous, rarely sub-interrupted 

 at base, lying in a groove between the costa and the margin in the upper 

 half portion of the frond and parallel with it, forming two equal lines, 

 intermixed with peltate paraph yses. Indusium none. Veins immersed, 

 irregularly anastomosing, with or without free veinlet within the areoles. 



Epiphytic # Fern. Rhizome creeping, with scales. Fronds simple, 

 uniform, linear, elongated, carnose, costate, articulated at the base, mostly 

 soriferous, the soriferous portion similar to the sterile portion in shape. 



A monotypic genus. Quite the habit of Vittaria, and it is to be 

 distinguished from that genus principally by the anastomosing venation, 

 peltate paraphyses, and articulated bases of the fronds. Its nearest 

 affinity is found in Drymoglossum, but fronds of the latter are quite 

 dimorphous. Hymenolepis, in which the soriferous portion of the frond 

 is contracted, and Heteropteris, in which sori are intramarginal on more 

 or less contracted portion of the frond, also apparently differ from the 

 present genus. 



(Etym.) Dry 7)i os, a forest, and tainia, a fillet; the fern inhabits forests 

 and with long narrow fronds. 



D. Miyoshianum Makino nom. nov. 



Tcenitis Miyoshiana Makino in Bot. Mag., Tokyo, XII. 1898, p. 26. 



Tmnitis sp. Miyoshi, ibidem, III. 1889, p. 351-53, tab. XIU. 



Vein-areoles with or without free included veinlet. 



For the description the remark, etc., see the Magazine cited .above. 

 In the issuing number (Vol. I. No. 12) of my " Phaneroganue et Pterido- 

 phvtee Japonicae iconibus illustratfe " figures with detail will appear, 



