PTERIDE.E NOTHOCHLAENA. 9 { 



(39) NOTHOCHLAENA R. Brown. 



Stipes clustered; fronds at least pinnate; pinnae not very inequilateral, 

 not glabrous; sori on the ends of the veins, usually coalescing when old, 

 naked or partly covered by the unmodified margin of the frond. Hardly 

 sufficiently separated from Cheilanthes by the modification of the margin 

 of the latter. C. tenuifolia has a form with unmodified margin, which 

 will be looked for here. Mostly natives of dry, warm countries. 



(1) N. densa J. Sm., Hooker. Rhizome creeping, short, scaly; stipe 

 3 to 12 cm. high, erect, firm, like the rachis, maroon, bearing sparse fibrillose 

 paleae; frond 10 to 20 cm. high, 2 to 3 cm. broad, tripinnatifid at base; 

 pinnae ovate-lanceolate, the lowest ones deltoid, remote, equaling or smaller 

 than those next above; pinnules linear-oblong, entire or crenate or pinnat- 

 ifid, obtuse, herbaceous, slightly hairy above, matted beneath with whitish or 

 brown tomentum; sori at length almost covering the lamina, partly pro- 

 tected at first by the incurved margin. 



Corregidor, Cuming 282; Benguet, Elmer 6384; Mount Mariveles, Loher. 



(2) N. distans R. Br. Stipes densely tufted, about 8 cm. high, bearing 

 linear scales; frond 15 to 20 cm. high, 3 cm. broad, bipinnate; lower pinnae 

 remote, deltoid, cut down to the rachis into oblong, obtuse, entire or slightly 

 lobed pinnules, subcoriaceous, pale green and slightly villous above, lower 

 surface and rachis more or less densely coated with long, linear, fer- 

 ruginous scales ; pinnae often much curled together, and the edge incurved. 



Mount Mariveles, Loher. 



Australia, New Zealand, New Caledonia. 



(40) PLAGIOGYRIA Kunze. 



Stipes clustered, the base abruptly enlarged and bearing 3 to 6 spongy 

 projections on the upper side; fronds dimorphous, simply pinnate; veins 

 free ; sori on the somewhat thickened ends of the branched veins, at maturity 

 sometimes covering the contracted frond; sporangium with an oblique con- 

 tinuous annulus; reflexed margin serving at first as an indusium. A small 

 genus of terrestrial ferns, with very much the appearance of Blechnum- 

 Lomaria, and sporangia resembling those of the Cyatheacece. 



(1) P. adnata (Blume) Bedd. Rhizome short, erect; stipe 15 to 45 cm. 

 high, firm, erect, naked; frond ovate-lanceolate, 30 to 45 cm. high, 10 to 15 

 cm. broad; pinnae linear, falcate, the largest about 8 cm. long, 1 cm. broad, 

 the lowest equal to those next above them, narrowed at the base and 

 separated by rather more than their own breadth, those in the middle of 

 the sterile frond widened at the base and contiguous, acuminate, finely 

 serrate, subcoriaceous; rachis naked; indusium brown, membranous, very 

 distinct. 



Mount Mariveles, 1,400 m, Loher. 

 India, Japan, Java. 



(2) P. pycnophylla (Presl) Mett. var. remota Chr. Rhizome stout, 

 erect, woody; stipe stout, erect, naked, 15 to 25 cm. high; frond ovate-lance- 

 olate, 60 to 90 cm. high, 15 to 25 cm. broad; pinnae very numerous, linear, 



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