Pteris PTERIDACEAE Onychium 



1. Pteris cretica Linn. Cretan Brake or Hem Fern (Bd. F. 106). 50-85 cm. tall; fr. 

 VI-XI; pinnae 12-20 cm. long. Cosmopolitan; locally in An., Ku. Cultivated or 

 on damp rocks. 



2. Pteris vittata Linn. Pinnate Hem Fern (H. S. F. 153; C. Chr. Suppl. 59). 20-90 

 cm. tall; fr. V-X; pinnae 5-15 cm. long. Cosmopolitan; locally in An. Rocky 

 cliffs. 



3. Pteris multifida Poir. (P. serrulata Linn, f.) Chinese Hem Fern or Spider Brake 

 (H. S. F. 155; C. Chr. 602). 15-65 cm. tall; fr. V-X; pinnae 8-20 cm. long. China, 

 Japan, Korea; locally in An., Che., Ki., Ku. Alleys, by wells, or cultivated. 



4. Pteris semipinnata Linn. (Bd. F. 109). 20-60 cm. tall; fr. IV-XI; pinnae 3-10 cm. 

 long. Asia; locally in An., Che., Ki., Ku. Rocky ledges. 



4. Pellaea Link Cliff Fern ^-MM (Han Chiieh Shu; Drought Fern Genus) 



Small tufted fern growing on or among rocks: stipes dark colored, shining; leaves 



pinnate to tripinnate; ultimate segments small: sori round or oblong, near tips of 



unconnected free veins, confluent; indusium continuous, formed by re flexed margin 



of leaf. 80 species. (Greek; pellos, dusky; the stipes being dark-colored.) 



1. Pellaea nitidula (Wall.) Baker (Bd. F. 101). 10-20 cm. tall; fr. IV-X; pinnae 



1-2 cm. long. China, India; locally in An., Ki. Exposed rocks. Fig. 15. 



5. Cheilanthes Sw. Lip Fern J&MM (Ch'un Chiieh Shu; Lip Fern Genus) 



Terrestrial or petrophilous ferns: rhizomes short, scaly: leaves small, usually tufted, 

 pinnate to decompound, pubescent, scaly or rarely glabrous: veins free: sori marginal 

 on tips of veins, confluent at maturity ; indusia formed by the more or less modified 

 reflexed leaf margin, distinct, often in contact, but not continuous. Over 100 species. 

 (Greek: cheilos, margin, and anthos, flower; from the marginal sori.) 

 1. Cheilanthes chusana Hook. (C. mysurensis Wall.) (Bd. F. 89; C. Chr. Suppl. III. 



54). 12-30 cm. tall; fr. IV-XI; pinnae 1-2 cm. long. Asia; locally in An., Ki. 



Crevices or walls. 



6. Aleuritopteris Fee ^h'^WM (Fen Pei Chiieh Shu; 

 Powdery-back Fern Genus) 



Small petrophilous ferns: rhizomes short, covered with black linear scales: stipes 

 clustered, dark brown or black, glossy; lamina deltoid or ovate; lotver surface more 

 or less covered with white or yellow farinose powder; veins free: sori marginal, borne 

 on tips of veinlets; indusium formed by the scarious reflexed leaf margin. 20 species. 



Key to the Species 



Lamina deltoid ; scales at base of stipe only 1 . A. argentea 



Lamina ovate; stipe and rachis more or less scaly 2. A. farivosa 



1. Aleuritopteris argentea (Gmel.) Fee {Cheilanthes argentea (Gmel.) Kze.) (Bd. F. 

 95). 10-30 cm. tall; fr. IV-X; palmately lobed. China, Japan, Siberia, Malaya; 

 locally in An. On exposed rocks. 



2. Aleuritopteris farinosa (Forsk.) Fee (Cheilanthes farinosa (Forsk.) Kaulf.) Bd. 

 F. 92). 12-25 cm. tall; fr. VII-X; pinnately lobed. Asia, Africa, Tropical America; 

 locally in Ki. On exposed rocks. 



7. Onychium Kaulf. Claw Fern IgUM (Wu Chiieh Shu; Black Fern Genus) 

 Terrestrial ferns: rhizome creeping, scaly: leaves decompound, subdimorphous; 



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