Our Native Ferns And Their Allies With Synoptical Descriptions of the American
The book Our Native Ferns And Their Allies With Synoptical Descriptions of the American was written by author Lucien Marcus Underwood Here you can read free online of Our Native Ferns And Their Allies With Synoptical Descriptions of the American book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Our Native Ferns And Their Allies With Synoptical Descriptions of the American a good or bad book?
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** Pinnules mucronulate or decidedly acute. T Fronds narrowly linear in outline, usually bipinnate. 8. P. Ternifolia (Cav. ) Link. Stipes tufted, nearly black, 2' 6' long, fronds 4' 10' long, narrowly linear; pinnae usually 9 15 pairs, all but the uppermost trifoliate; segments com- monly linear, slightly mucronate, coriaceous, sessile or the middle one indistinctly stalked, the edges much inflexed in fer- tile fronds ; indusium broad. (Ptert's ternifolia Cav. ) Western Texas. 9. P. Brachyptera... (Moore) Baker. Stipes 2' 8' long, pur- plish-brown ; fronds 3' 8' long, narrow in outline from the as- cending secondary rachises, bipinnate; pinnules crowded, 2"- 5 long, oblong-linear, simple or trifoliate, acute or mucronulate ; margins inflexed to the midrib in fertile fronds. (P. Ornithopus, var. Brachyptera D. C. Eaton, Platyloma be Hum et P. Brachypte- rum Moore. ) California. ft Fronds broader, lanceolate to ovate, bi tripinnate. 10. P. Ornithopus Hook. Stipes tufted, 3' 8' long, rather stout, dark-brown; fronds very rigid, 3' 12' long, 2' 3' broad, broadly deltoid-lanceolate, bi tripinnate ; primary pin- nae spreading or obliquely ascending, linear, bearing 416 pairs of trifoliate (varying from simple to 5 7 foliate) mucronulate pinnules, I-J-" 2" long ; margins inflexed to midrib in fertile fronds.
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