556 Bryophyten. — Pteridophyten 



Single tooth on the free margin and the hyaline papilla borne at the base 

 of this tooth, as well as other differences in leaves and under-leaves. 

 Vegetative reproduction in Cyclolejeunea is by means of peculiar margi- 

 nal gemmae instead of the leafy propagula of Odontolejeunea. These 

 gemmae are borne on a Single marginal leaf cell which projects beyond 

 the other cells, forming a stalk and are cut off by constriction, leaving 

 both the stalk cell and the two basal cells of the gemma intact. The 

 development, structure, and germination of the gemma is described in 

 detail for each species. Four species are described from Puerto Rico, 

 C. Chitonia, C. convexistipa, C. accedens and C. angulistipa, while the 

 new combination C. Peruviana is also to be expected. 



A füll description of the genus Prionolejeunea with a discussion of 

 the leaf-cells, lobules, underleaves, inflorescence, perianth, relationships. 

 etc. isgiven. Five species are described, P. aemula being the only one not 

 new, the others are P. innovata, P. aequitexta, P. Heilerin and P. exauri- 

 culata. Moore. 



CLUTE, Willard N., New or Rare Ferns from the South- 

 west. (The Fern Bulletin. XII. April 1904. p. 43—45.) 



Pellaea aspera is separated from southwestern Texas, a part of 

 the specimens examined constiiuüng a new „forma compacta". Adlan- 

 tum tricholepis forma glabrum (forma nov.) is described from Texas. 

 Chellanthes Moritziana Kunze, from several situations in Texas, is 

 regarded as a valid seggregate of C. microphylla Sw. Maxon. 



CURTISS, A. H., The Fern Flora o f Florida. (The Fern 

 Bulletin. XII. April 1904. p. 33—38.) 



A list of 72 species and 4 subspecies of Pteridophyta occurring in 

 Florida, together with notes on distribution and ecology. Nine-tenths 

 of the State is covered with open pine woods growing out of coarse 

 sand and aifording litt 1 e shade. There is also a considerable area of 

 „hammocks", hardly more congenial to ferns than the pine areas. On 

 the western side of the peninsula, however, there is an extensive 

 limestone outcrop, merging at the south into old coral and ,,coquina" 

 rock, which Supports an interesting and fairly proliiic fern-ilora, com- 

 prising for the most part species common to the West Indies. In the 

 southern portion, also, the epiphytic species become more abundant. It 

 is regarded as highly probable that a number of West Indian species 

 await discovery in this region. Maxon. 



EATON, A. A., A Preiiminary List of Pteiidophyla col- 

 lect e d in Da de County, Florida, during Novem- 

 ber and December, 19 03. (The Fern Bulletin. XII. 

 April 1904. p. 45—48.) 



Notes on many rare or otherwise interesting pteridophytes from 

 southern Florida, several being new to the United States flora. 

 Although not in every case speciiically so stated these appear to be : 

 Nephrodium amplum, Odoniosoria clavata, Poiypodium angustifolium, 

 Trichomancs Kransii and T. sphenoidcs. Asplenium rhizophyttum Bis- 

 caynianum D. C. Eaton is raised to specific rank. Maxon. 



EATON, A. A., Isoetes Amesli: A Correction. (The Fern 



Bulletin. XII. July 1904. p. 89.) 



The form of Isock's known as A/nesii is properly /. saccharata 



Amesli, and has priority under this trinomial designation. Maxon. 



