26 
COPELAND. 
14. Gleichenia bullata Moore (G. arachnmdes Mett.) 
Like G. japonica, but the segments rigidly coriaceous, bullate, clothed 
beneath with dense, cobwebby, ferruginous pubescence; and the costa?, 
at least near the base, bearing lanceolate, apiculate, dark-chestnut scales, 
2 mm long, with whitish ciliate margins. 
Java, oil summits of liigli mountains. 
15. 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, obtuse segments, rigidly coriaceous, 
glabrous on both surfaces, green or glaucous beneath ; sori medial, 12 to 
20 to a segment. 
Malacca. 
16. Gleichenia japonica Spv. (G. longissima Bl. G. glauca (Thunb.) Hook., 
non Swartz ) . 
Stipe stout, in large plants 1 to 2 cm high, usually forked only at the 
top, but not rarely bearing pairs of pinnae lower down, terminal bud of 
foliaceous bracts; pinna? more or less horizontal, 1 to 2 m long, almost 
bipinnate, 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 costa? : 
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. 
G. gigantea Wall, is a large form, the bases of whose segments form raised 
lines along the costae. 
G. excelsa J. Sm. 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. 
8. PARKERIACEiE. 
Rhizome in mud: fronds clustered, usually tripinnatifid, dimorphous; 
veins reticulate without free included veinlets; 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. 
