284 38 



by its very coriaceous texture, long stem, no auriculiform, reduced pinnæ, and by 

 its medial sori. The original specimen is incomplete wanting rhizome and stem, 

 the others have an erect rhizome clothed with pubescent scales as in D. oliyocarpa. 

 Stem in length e(|ual to or longer than lamina, this being 1 — 3 dem. long by 

 3-8 cm. broad, its rachis and costæ beneath hairy, otherwise glabrous, with 

 the base rounded, i. e. the lower pinnæ get gradually shorter, but are not very 

 reduced and distant. Pinnæ alternate, rather close, the edges of the segments 

 recurved. Veins simple, 6 — 7, prominent above. Sori medial, indusium not found. 

 In the original specimen a tuberculiforni aërophore is seen at the base of the 

 larger pinnæ. 



li). Dryopteris rioverdensis n. sp. — [Fig. llj. 



Brasilia: Prov. Minas Geraes: Caldas. In ripa amnis Rio Verde ail rupes 

 umbrosas, leg. Hj. Mosen '-'/lu 1873, n. 2171 (HS!). 



Eudryopteris rhizomate breviter repente, 1 cm. crasso. Stipitibus c. 'In cm. 

 remotis, gracilibus, 5—6 cm. longis, stramineis, brevissime pubescentibus, mox gla- 

 bratis, ad basin squamis brunneis, aeuminatis dense vestitis. Lamina 28 cm. longa, 

 medio c. 10 cm. lata, ad apicem breviter acuminatum sensim decrescente, versus 

 basin abrui)te attenuata, herbacea, gramineo-viride, ciliata, utrinijue ad costas bre- 

 viter pubescentibus, inter venas glaberrima, eglandulosa, bipinnatilida. Rachibus 

 stramineis, gracilibus, pubescentibus. Pinnis inferioribus 2 jugis minimis, auriculi- 

 formibus, inter se 3 cm. distantibus, superiore jugo reflexo 3 cm. longo, su])eriori- 

 bus erecto-patentibus, alternis, lineari-lanceolatis, c. 6 cm. longis, I'/'i cm. hitis, 

 sessilibus, apice serrato acuto vel breviter acuminato excepto ad alam c. 1 mm. 

 latam pinnatifldis. Laciniis approximatis, obliquis, obtusis, integris vel freipienter 

 versus apicem leviter crenato-dentatis, basalibus aeijualibus vel anteriore [)aulo 

 longiore. Venis indivisis, 6 jugis. Soris supramedialibus, parvis. Indusiis persisten- 

 tibus, reniformibus, glabris. 



This new species, of which I have seen only a single specimen with only a 

 single fully developed leaf, is in habit very different from the other species with 

 a similar rhizome. With regard to the base of the leaf it somewhat resembles 

 D. Mosenii and D. Lindmani, yet differs from both in pubescence and in its few 

 reduced pinna', from the former moreover by its thin texture, fewer veins and 

 glabrous indusium, from the latter, besides the dill'erent habit, by its persistent 

 indusium. 



20. Dryopteris Regnelliana n. sp. — [Fig. 12]. 



Brasilia. Minas Geraes, Caldas, leg. Regnell n. III. 1446a (HS); Mosen n. 2165, 

 2167 (HS). 



Eudrijopleris rhizomate breviter repente apice adscendente, c. 1 cm. crasso. 

 Stipitibus subremotis, decidue pubescentibus, ad basin squaniis brunneis deciduis 

 sparse instructis, griseis, 10—15 cm. longi^j. Lamina lanceolata, 7 — 8 dem. longa. 



