Underwood : American ferns 1 93 



This tropical fern, which becomes almost a climbing species in 



West 



Mr. C. S. Will 



son, as already reported (Torreya 3 : 18. 1903). He says of it : 

 " It was quite abundant in the woods on the borders of Lake 

 Apopka, which at Oakland is quite a distance from the town." 



The plant resembles Dennstaedtia in habit, but has the in- 

 dusium of Cheilanthes. The specimens sent by Mr. Williamson 

 have a height of only 60 cm. 



Asplenium Andrewsii A. Nelson, Proc. Biol. Soc. Washington 

 17: 174. 1904. (Type from Boulder Creek, Colorado, 

 Andrews.) 



This new discovery from Colorado is a member of the Adian- 

 tnm- nigrum group of Asplenium and is closely related to Asplenium 

 Adiantum-uigrum of central and southern Europe. Among our 

 species it will stand nearest A. montanum. 



Asplenium verecundum Chapman in herb. sp. nov. 



Rootstock short, erect or inclined, covered with more or less 

 persistent bases of the leaf-stalks ; leaves densely cespitose, bi- 

 tripinnate, 16-40 cm. long, elliptic-lanceolate, 2.5-6 cm. wide, 

 tapering both ways from the middle, borne on stalks 2-10 cm. 

 long, which are smooth and brownish-purple as are also the 

 rachises ; pinnae (in larger specimens) bipinnate at base, gradually 

 simpler outwards, or (in smaller specimens) pinnate throughout 

 or with the basal pinnule 2-3-lobed or even divided into 2-3 

 segments ; segments obovate or broadly oblanceolate, obtuse or 

 rarely truncate at the apex and often mucronulate, decurrent on a 

 narrowly winged rachis, bearing a single vein with a short sorus 

 in or near the center ; texture delicate, membranous ; indusia 

 rather broad, delicately membranous, with entire margins. 



Range: Florida, northern, central, and southern ; specimens 

 have been examined as follows : 



Jackson County : Chapnuin (type). Marion County : near 

 Ocala, 1879, M* ss Reynolds ; John Don mil Smith ; 1 891, Under- 

 ivood 18 10. Scott's Spring near Ocala, 1891, Underwood 18 18. 

 Belleview, 1 891, Underwood 18 j6. Hernando County : Istachatta, 

 1 891, Underwood 2001 b, 2001 e; Nash ijpd a. Dade County: 

 Biscay ne Bay, 1887, Isaac H olden ; 1888, R. M. Monroe. Between 

 Cutler and Longview Point, 1903, Small & Carter 854, 1156. 

 Miami, 1904, £. G. Br it ton 9/. 



