91 



CYSTOPTERIDE.E. 



CYSTOPTEEIS. Beruhardi. Schrad. Neues. Journ. Bot. i., Part 11., 5. 26. t 2. /. 9. 



(Cystea, Smith ;— Cyclopteris, Gray ^-Aspidii, Sp., Auct. ;— Polypodii Sp., Auct, ;— CyatheaSp., Auct. ;— NepLrodii Sp* 

 And. Athyrii Sp., Auct.) 



Sort indusiate ; tbe receptacles medial. Indusium roundish-ovate, fornicate or sub-hemispherical, affixed by its broad base, the 

 apex often lacerate, sometimes acuminate. Veins, simple forked or pinnate from a central costa ; venules free. 



Fronds membranaceo-herbaceous, bi-tri-pinnate. Rhizome tufted, decumbent, or elongated and creeping. (Moore.) 



CYSTOPTEEIS FRAGILIS. (Bernh.) Fronds broad lanceolate bipinnate, pinnae ovate or lanceolate variously toothed or acumi- 

 nated or pinnatifid, the segments more or less acute entire or again toothed. Sori scattered more or less distant, sometimes crowded and 

 almost confluent, rachis winged. Hook. Sp. FiU L 197. Bernh. Neu Journ. Bot. i. p. 27 ;— Pvdypodium, L. ;— Aspidium, mild. Sp., PI, 

 v. p. 280 ; — Cyathea Orien talis, Desv. 



The specimen figured is from Nepal. 



Hab. Himalayas, Simla, Nepal, Punjab, Great Britain, and throughout Europe, Siberia, Asia Minor, Persia. North and South 

 America, Madeira, West Indies, North and South Africa, 



PLATE No. XCI. 



