(Reprinted from Bulletin of thk Tokeey Botanical Club, October, 1888.) 



An Enumeration of the Plants Collected by Dr. H. H. Rusby in South 



America. 1885-1886.-111. 



PTERIDOPHYTA. 



Determined by Elizabeth G. Britten.* 



(I.) — Equiset^. 

 Eguisetmn Bogotense, H.B.K., Sorata (2509}. 



(II.) — LyCOPODIACE-'E. 

 Lycopodiiim Saiirjirus, Lam., Yungas (455). 

 L. lifiifolium, L. , Yungas (449). 

 L. alopecicroides, L., Mapiri (457). 

 L. aqiialnpiamim, Spring, Yungas (458). 

 L. cei'iunim, L., Yungas (447). 

 L. clavatuvi, L., Unduavi (448). 

 L. scariosiim, Forst., var. Jicssicei (Desv\), Baker, Yungas (451). 



(III.) — SeL AGIXELLEyE. 

 Selagiiiella macropJiylla, Spring, Sorata (456). 

 5. loiigicuspis. Baker (?). Possibly S. siibstipitata, Spring, but 



leaves of the upper plane less than one- half as long as those 



of the lower. ]\Iapiri (461a). Beyond the recorded range of 



either. 

 5". Breynii, Spring, Mapiri (461). Approaching in the auricled 



bases of the leaves, S. canipylotis, A. Br. 

 5. polycephala, Baker, Mapiri and Yungas (462). Young plants 



like Holton's No. 82, Flora Neo-Granadina Quindiensis. 

 S. Poeppigiana, Spring, Yungas (452); Unduavi (454). 



■^In the determination of these plants I have been favored with exceptional 

 advantages, for, in addition to the resources of the Columbia College Herbarium 

 and Library, I have had access to Professor's Eaton's, at New Haven, and those at 

 Kew. To Professor Eaton and Mr. Baker, for their kindly assistance, I hereby 

 tender my hearty thanks. 



