26 



COPELAND. 



14. Gleichenia bullata .Moon- {(!. arachnoidea M«tt.) 



Like 0. japonica, but the segments rigidly coriaceous, bullate, clothed 

 beneath with dense, cobwebby, ferruginous pubescence ; and the costse, 

 at least near the base, bearing lanceolate, apiculate, dark-chestnut scales. 

 2 mm long, with whitish ciliate margins. 



Java, on summits of high mountains. 



];"). Gleichenia norrisii Mett. 



Pinna' a single pair at the Top of the stipe, 60-90 cm long; pinnules 

 lanceolate, the lower distinctly stalked. 15-23 cm long, cut to a narrow 

 Wing into close, entire, ligulate, olituse segments, rigidly coriaceous, 

 glabrous on both surfaces, green or glaucous beneath; sori medial. 12 t«. 

 20 to a segment. 

 Malacca. 



Iti. Gleichenia japonica Spr. {<!. longisaima HI. <!. glauea (Thunb.) Hook., 

 lion Swart/) . 



Stipe stout, in large plants 1 to 2 cm high, usually forked only at the 

 top. hut not rarelv hearing pairs of pinnae lower down, terminal hud of 

 foliaceouB bracts; pinna? more or less horizontal, 1 to 2 m long, almost 

 biphmate, rachises winged by narrow ridges, glabrous or more or less 

 beset with tawny, entire or somewhat ciliate scales beneath and on the 

 sides, sometimes white-cobwebby on top; pinnules up to 20 cm or more 

 long, standing mostly at right angles to the rachis, acuminate, sessile or 

 nearly so, linear-lanceolate, cut almost to the chaffy or glabreseent cost*; 

 segments standing at almost a right angle, close, broadly linear, obtuse, 

 entire, herbaceous to coriaceous, dark-green and glabrous above, almost 

 glabrous or with scaly costules beneath, and paler, and usually glaucous. 



The typical Japanese plant is of moderate size, the pinnules not quite at right 

 angles to the rachis, comparatively thin in texture, and conspicuously glaucous. 



<!. (/ifjoittca Wall, is a large form, the bases of whose segments form raised 

 lines along the eost;e. 



G. excclsa J. 6m. is the very large coriaceous form common in the Philippines, 

 the lowest segments often lacerate on the side toward the rachis. 



Japan to India and Polynesia and Australia. 



s. parkeriacke:. 



Rhizome in mud: fronds clustered, usually tripinnatitid, dimorphous; 

 \eins reticulate without free included \einlets; sporangia scattered, not in 

 sori, opening by a transverse slit, annulus of very numerous cells or rudi- 

 mentary. A single genus. 



CERATOPTERIS Brongniart. 



Characters those of the family. A single species. 



