1 1 6 Baker. A Summary of the new Ferns 



8. D. moritziana, Presl. Has lately been found in Jamaica and 



Costa Rica. 



11*. D. polymorpha, Leprieur. Stipe long, i -jointed. Sterile 

 frond oblong, a foot long; rachis not winged; pinnae 7-9, 

 petioled, oblong-cuspidate, the end one the largest, 5-7 in. 

 long, 2-2 \ in. broad; veins distinct, erecto-patent. Fertile 

 frond with a jointed stipe \\ ft. long and 9-11 narrower 

 pinnae. Guadeloupe, MazS; Grenada, Shern'ng. Perhaps a 

 mere variety of D. elliptica. D. oligosora, Fourn., also 

 gathered by Fournier in Guadeloupe, has about the same 

 number of pinnae as D. polymorpha, but they are only \\-\\ 

 in. broad, and narrowed more suddenly at the base. 



OPHIOGLOSSACEAE. 



Genus 73. OPHIOGLOSSUM, Linn. 



The genus is monographed very carefully by Prantl, in Jahrb. 

 Bot. Gart. Berlin, III, 297, tabs. 7-8. He admits 29 species, 

 dividing into several our 0. lusitamcum, nudicaule, and vul- 

 galum, on characters furnished by the rootstock and the 

 venation of the barren frond. 



1*. O. minimum, Armstr. in Trans. New Zeal. Instit. 1880, 342. 

 New Zealand. I have not seen a type-specimen, but suppose 

 it to be identical with O. coriaceum, A. Cunn., which is kept 

 up as a species by Prantl. 



5*. O. costatum, R. Br. Prodr. 163, should clearly be kept up as 

 a primary species. It is spread from North Australia to 

 West Africa and under it range O. brevipes, Beddome, O. 

 Wightii, Hook, et Grev., O. aphrodisiacum, Welw., and 

 O. flbrosum, Schum. et Thonn. 



7. O. intermedium, Hook. Further material shows this a mere 

 form of O. pendulum. 



9. O. palmatum, L. Has now been found in Florida and 



Madagascar. 



Genus 74. HELMINTHOSTACHYS, Kaulf. 



1. H. zeylanica, Hook. Has now been found in the Solomon 

 Islands and New Guinea. 



