292 46 



dimidio majore, acuta, rachin vel laciniam basalem posteriorem pinnae superioris 

 tegente. Venis 2 — 3 jugis, remolis, dislinclis, simplicibus, vena basali anteriore 

 sinum atlingente saepe sola sorifera, inlerdum in lacinia 2— 4 venis soriferis. Soris 

 niajusculis, globosis, submarginalibus. Indusio parvo, cito deciduo ("dimidiato 

 reniforme, tenerum, margine ciliatum" Mett.). 



I have given a new diagnosis of this pretty and distinct but forgotten species 

 after Eggers' specimens, consisting of five plants with about 20 leaves of which 

 some are not more than 8— 10 cm. long by 1 cm. broad. They agree to the smallest 

 details with the two leaves in HB, believed to be from the original specimen, and 



1 therefore consider this form the typical one. In the shape and reduction of the 

 lamina the species resembles somewhat small forms of D. opposita, but it differs in 

 several characters: smaller size, pinnæ being rarely more than 2 cm. long, obtuse, 

 fragile in texture, colour pale, the upperside pubescent also between the veins, 

 only 2 — 3 pair of veins, upper basal segment alone enlarged, etc. 



From this type differ some specimens in HB. 



1. forma pinnis acuminatis. 

 Venezuela, Gollmer, Lansberg (HB). 



2. A typo dilTert: majore, foliis 5 dem. longis, 7—8 cm. latis, pinnis infra- 

 medialibus maximis, 4 cm. longis, 1cm. latis, laciniis 12 — 15 jugis, venis 4— 5 jugis, 

 textura tenuiter membranacea. 



Columbia: Bogota, 2600 m., Lindig n. 75 (HB). — Popayan, Lehmann n. 3451 

 pt. (HB). — ? Bogota, Triana (HB). 



3. var. longipes n. var. 



A typo ditTert: foliis longe stipitatis, stipitibus 10 — 12 cm. longis, gracilibus; 

 lamina versus basin brevius attenuata, pinnis inferioribus 4—6 jugis reductis, infimis 



2 cm. remotis. Soris inframedialibus. 



Columbia: Alto de Aleguar, 2800 m., Lehmann n. XXI (HB = Nephrodiuin 

 coarctatum Hieron. Engl. Jahrb. 22: 444. 1904). 



It is possibly better to consider this variety a species of its own, especially 

 because of the position of the sori. The underside of the lamina is extraordinarily 

 densely and distinctly glandulose, the glands dull. 



28. Dryopteris panamensis (Presl) C. Chr. — [Fig. 19]. 



Syn. Nephrodiuin panamense Presl, Rel. Haenk. 1: 15. 1825; Lastrea panamensis 

 Presl, Tent. 76. 1836. Polypodium litigiosum Liebniann, Mexicos Bregner 53 (Vid. 

 Selsk. Skr. V. 1: 205). 1849; Aspidium exsudons Fourn. Mex. plant. 1: 93. 1872; 

 A. conterminuni var. resiniferum Mett.; Kuhn apud Krug, Engl. Jahrb. 24:115.1897. 



Type specimen from Panama, leg. Haenke (Museum d. Kgr. Böhmen, 

 Prag!). 



Eudrijopteris rhizomate erecto, apice squamis paucis instructo. Stipitibus fasci- 

 culatis, brevibus (3—4 cm. longis), stramineis, glabris vel paulum pubescentibus, basi 

 squamis nonnullis vestitis. Lamina lanceolata, '/a— 1 m. longa, ad basin gradatim 



