308 



62 



and embrace the rachis. A little aërophore is present. Rachis and costæ hairy, 

 upperside else glabrous, while the underside is also pubescent on the midribs of 

 the segments but eglandulose. 10—11 pairs of veins; sori nearly medial; indusium 

 not seen. Texture firm, membranaceous or chartaceous or nearly coriaceous, the 

 edges revolute : 



var. Biolleyi Christ, Bull. Boiss. II. 7: 262: 1907. 



Costa Rica: Tablazo 1900 m., leg. P. Biolley i^/igoß n. 68 (HC). 



A typo differt: pinnis longioribus, maximis ad 15 cm. longis, I'/s cm. latis, 

 planta tota fere omnino glabra, laciniis basalibus rachim non amplectentibus, scd 

 anteriore saepe rachin superne tegenle. 



47. Dryopteris utanagensis Hieron. Hedwigia 46: 333. 

 lab. 5 fig. 8. 1907. 



Type from Ecuador: Utanag, leg. Stûbel n. 809 (HB!). 

 Rhizome and stipe wanting. Its nearest ally is D. supina, 

 by its narrow pinnæ and segments. Sporangia 

 glabrous. 



dilTering 



Fig. 3:3. 



(Mett.) O. 

 gens 



D. palustris 

 . Ktze. .liir- 

 n. 107. 



48. Dryopteris atropurpurea Hieron. Hedwigia 46: 342. 

 tab. 6 fig. 15. 1907. 



Type from Columbia: Huila, leg. Stübel n. 159 (HB!). 



The most divided species of the whole group; the pinnæ 

 towards their base are incised to costa and the segments through- 

 out crenate. 



49. Dryopteris palustris (Mett.) O. Ktze. Rev. Gen. PI. 2: 813. 

 1891. Rosenstock, Hedwigia 46: 121. 1906 — [Fig. 33]. 



Syn. Aspidium palustre Mett. msc. : Nephrodium palustre 

 Bak. Syn. Fil. 270. 1867. 



Type from Brazil: Minas Geraes, Caldas, leg. Lindberg 

 n. 633 (HB). — Other specimens: Caldas, Mosen n. 2177 (HS). — 

 S. Catharina; Lages, Spannagel n. 104 (HR). — Blumenau, Haer- 

 chen n.42 (HR). - Rio Grande do Sul, Jürgens n. 107, 183 (HR). 



This species is possibly not specifically distinct from D. 

 pachyrachis, resembling it in pubescence, size and shape of 

 lamina. It is, however, as a rule to be distinguished by its thin 

 leaf and setose indusium. The segments are not exactly patent, 

 but somewhat bent forwards, often a little falcate, subacute and 

 not rarely with répand edges. Underside and indusium are as 

 a rule eglandulose, but both are in some specimens furnished 

 with glands as in D. pachyrachis. 



