80 American Fern Journal 



the subgenus Lastrea. From the former it differs in 

 its non-glossy upper surface and in its patent and toothed 

 segments; from the latter in its shorter pinnae, nearly 

 glabrous rachis, and toothed segments. A pronounced 

 character is found in the broad bases of the segments. 



Dryopteris {Lastrea) ptarmiciformis C. Chr. & Ros. 

 Repert. Sp. Nov. Fedde 12: 472. 1913. 



Bolivia: Buchtien 3545. Near D. oligocarpa, the 

 segments very oblique; indusium distinct. Its system- 

 atic position will be between D. oligocarpa and D. pilo- 

 sula. 



Dryopteris (Lastrea) subandina C. Chr. & Ros.; Re- 

 pert. Sp. Nov. Fedde 12: 472. 1913. 

 Bolivia: Buchtien 3120. In habit not unlike D. 

 pachyrachis, but having the sporangia setose as in D. 

 concinna. This species should be inserted between 

 D. concinna and D. rufa in the key. 

 Dryopteris (Lastrea) arborea Brause, nom. nov 



Dryopteris roraimensis Brause, Notizblatt d. Kgl. 

 Bot. Gart. Mus. Berlin. 6 (no. 54): 109. 1914 

 (non C. Chr. Ind. 289. 1905). 



British Guiana: Mt. Roraima, Ule 8520. 



A very interesting novelty with a caudex 1 to 2 meters 

 high and leaves nearly 1.5 meters long, bipinnatifid. In 

 technical characters it is closely related to D. Glaziovii, 

 from Brazil, and D. euchlora, from Ecuador, and its var. 

 inaequans C. Chr., from Central America, from which 

 it differs by several characters; for example, in its 

 castaneous, glossy rachis. 



Dryopteris (Goniopteris) nephrodioides (Kl.) Hieron. 

 var. glandulosa C. Chr. & Ros. Repert, Sp. Nov. 

 Fedde 12: 473. 1913. 



Bolivia: Buchtien 3410. A form with yellow glands 

 on the under surface, a character hitherto not observed 



in the subgenus Goniopteris. 



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