626 UNDERWOOD: THE GENUS GYMNOGRAMME 
position in almost every quarter against the Kew conception of this 
genus and it is to be said that the genera named above represent in 
most cases valid genera. Of the series, Digrammarta, Stegno- 
gramma, Aspleniopsis, Coniogramme, Syngramma, and presumably 
Selliguea and Dictyogramme represent exclusively Old World 
genera. Leptogramma, Austrogramme, Pleurosorus, Gymmnopterts, 
Anogramma, and Ceropteris are found on both continents ; while 
Pterozonium, Hecistopteris, Psilogramme, Bommeria, Trismeria, and 
Synammia are so far as known exclusively American. The 
genera and species represented in North America are as follows: 
I. Leprocramma J. Sm.; Hook. Jour. Bot. 4: 51. 1841 
(Based on L. asplenoides (Sw.) and six other species.) 
1. LEpToGRAMMA P1LosuM (Mart. & Gal.) 
Gymunogramme pilosa Mart. & Gal. Mem. Acad. Sci. Bruxel- 
les, 15:—(27). pl. g.f.r. 1842. (Type from Orizaba, Galeotti, 
6267, 6268.) 
Hab, Mexico. 
2. LeprocramMa Linxranum (Pres!) J. Sm.; Hook. Jour. Bot. 4: 
52. 1841 
Grammitis Linkiana Presl, Tent. Pterid. 209. 1836. 
Gymnogramme Linkiana Kunze, Linnaea, 18: 310. 1844- 
Fab. Mexico, 
Confused in Synopsis Filicum with L. diplazioides (Desv.) from 
Haiti, as is also Leptogramma rupestre Klotzsch, Linnaea, 20: 
415. 1847, from Colombia, likewise a distinct species. 
3. LeproGRAMMA GRACILE (Heward) J. Sm.; Hook. Jour. Bot. 
Ac RS:  tRat 
Gymnogramma gracile Heward, Mag. Nat. Hist. Il. at 632 
1838. 
Hab. Jamaica. 
4. Leptogramma diplazioides (Desv.) 
Gymnogramma diplazicides Desv. Ann. Soc. Linn. de Paris, 6: 
214. 1827, 
Hab, West Indies to South America. 
