4 GLEICHENIA. 



ences mav probaMy be due to tlie tropical or subtropical countries where 

 alone this plant has been found. 



8. G. hecistophylla, A. Cunn. ; fronds clichotomous divavi- 

 cated, branches pectinate, pinna? pinnatilid, segments orbicular 

 saccate, branches and racliis densely ferrugineo-pubescent, 

 capsules 2 sunk in the hollow of the segments. (Tab. 11. B.) 

 — A. Cunn. Nor. Zel. in Hook. Camp, to Bot. Mag. v. ii. p. 

 361. G. seraivestita, J. Sm. {not Lnhill.) 



Hab. N. Zealand, R. and A. Cimninc/ham, Colcnso. — This seems to bear 

 the same relation to G.scmiirstila, that G. dicarpa does to G. micrnphyUa. 



9. G. lonf/issima, Bl. ; "stipes dichotomous and the rachis 

 flat above, fronds bipinnatifid submembranaceous glaucous 

 beneath and slightly tomentosc, pinna) alternate linear-lan- 

 ceolate deeply pinnatifid, the segments linear obtuse, capsules 

 3 — 4 subglobose sessile." Bl. Fil. Jav. p. 250. 



Hab. Moist woods, Java, Blume. — This author says its place is between 

 G. polypodioides and G. micrnphyUa : and he notes two varieties. 1 . fronds 

 white beneath with the segments larger. 2. fronds coriaceous ferrugineo- 

 tomentose beneath, the segments smaller, rachis with chaffy scales beneath. 



10. G.viilcanica,V>\.; "stipes dichotomous terete at length 

 glabrous, fronds bifurcate bipinnatifid coriaceous glaucous 

 beneath, pinnules narrow-linear, segments orbicular cucullate 

 and reflexed beneath, rachis everywhere densely pubescent." 

 Bl. Fil. Jav. p. 251. 



Hab. Lofty burning mountains of Java and Celebes, Blume. — With this 

 (as with the preceding) T am unacquainted. Mr. J. Smith refers it to G. 

 semivestita in his ' Enum. Fil. Philipp.'but Blume notices its great affinity 

 with G. alpina, and remarks that the common rachis is not tomeutose, but 

 altogether chaffy. 



Subgen. 11. Mertensia, Willd. Sort near the middle or at the 

 forking of the veinlets. Capsules sessile. Segments of the fronds 

 linear or oblong, rarely ovate, larger than in the preceding group. 

 Mertensia, Sw. and others. 



§ I. Stipes forked, branches hifinnate. 



11. G. {Mertensia) glauca, Sw. ; primary pinnae opposite 

 oblong acuminate, its rachis above with an acute margin, se- 

 condary lanceolate acuminate mostly alternate deeply pin- 

 natifid, rachis flat without margin, segments linear oblong 

 subacute very glaucous beneath obtuse and slightly serrated 

 at the points glabrous or nearly so, capsules 3 — 5. (Tab. 

 III. B.) — Mertensia glauca, Sw. Syn. Fil. p. 164 and 390 

 {not Gleichenia glauca, Sw.) G. Japonica, Spr. M. pinnata, 

 Kunze, Anal. Pterid. p. 6. 



Hab. Mountains, Japan (.Swar/^). Owhyhee, Macrae, Nightingale. — 

 My specimen, the same as the M. pinnata of Kunze, seems to me to ac- 



