PTERIS. 107 



GENUS VI. 



PTERIS. Ltnn^us. 



The family of Pteris has been very much cut up into groups 

 and distinct families, some of which are very near neighbours 

 to Pteris. Of these Mr. Smith, in his Catalogue of the Ferns 

 in the Royal Gardens, Kevv, has the following: — 



1. — Crypto gramma, a very un-Pteris looking solitary Fern. 



2. — Pellcea, eight species. 



3. — Platyloma, three species. 



4. — Doryopteris, two species. 



5. — Pteris, nineteen species. 



6. — Litobrochia, nine species. 



7. — Loncliitis, one species. 



Kunze, in his "Index Filicum," has the following: — 



1. — Allosorus, fifteen species, including Smith's genus, Cryp- 

 togramma, Pellcea, and Platyloma. 



2. — Loncliitis, two species. 



3. — Pteris, fifty-two species, including Doryopteris and 

 Litobrochia. 



Presl, in his "Tantamen Pteridographiae," contains: — ■ 



1. — Pteris, an extensive genus. 



2. — Monogonia, one species. 



3. — Campteria, six species. 



4. — Litobrochia, an extensive genus. 



5. — Amphiblestra, two species. 



6. — Allosorus, an extensive genus. 



7. — Loncliitis, three species. 



Moore, in his "Genera and Species of Cultivated Ferns": — 



1. — Cassebeera, five species. 



2. — Platyloma, eight species. 



3. — Doryopteris, three species. 



4. — Litobrochia, five species. 



5. — Lonchitis, one species. 



(>. — Campteria, one species. 



7. — Pteris, fourteen species. 



