— 8i— 



imen from Oaxaca confirms me in that opinion. It is so 

 small and slender that the name has a definite meaning. 

 My specimen almost exactly matches the figure given in 

 M. & G., and that certainly does not agree with the ferns 

 we are accustomed to call A. parvulum. M. & G.'s de- 

 scription hardly tallies with their plates of the fern. In 

 their description they say that the " leaflets are oblong, 

 obtuse, entire, while the enlarged pinnae of the plate 

 show the edges to be bluntly crenate, which exactly agrees 

 with my little specimen. 



4. Blechnum occidentale L. var. minor Hook. This 

 only differs from the ordinary form of the species in 

 being smaller and more delicate. 



5. Chcilanthes Matthewsii Kunze. So far as I am 

 aware, this species has not previously been reported 

 north of Bolivia. It is a fern, however, on which one 

 could hardly go astray. The large, dense, shiny black 

 scales of the rootstock, the exceedingly stiff and straight 

 rachises, and the much in-rolled pinnules, plainly distin- 

 guish it wherever found. Martens and Galeotti were 

 evidently not aware of its existence in Mexico. It has 

 only been reported from Peru and Bolivia, Peru being 

 the country where it was originally discovered. In 

 Hooker's " Species Filicum " it is said to grow in " crev- 

 ices of rocks and dry places," which agrees with its place 

 of growth in Oaxaca. 



6. Gymnogramma tartarca Desv. Just the common 

 form of the species, rather small. 



7. Llavea cordifolia Lagasca. Although these speci- 

 mens are only fragmentary, they are the gems of the 

 collection. Mr. G. was uncertain whether the plant was 

 a fern or not, so he only gathered the upper fertile part. 

 The fern resembles Osmunda regalis in a general way, 

 the lower part of the frond being frondose and sterile, 

 but terminating in a wholly fertile portion at the sum- 

 mit. He picked off merely a half foot or so of the top of 

 the plant and stuck it into an old magazine he happened 

 to have with him, but I was delighted to get even that 

 much of such a species. It is not known to grow in any 



