290 44 



Lamina l'/t m. longa, 2 dem. vel ultra lata, pinnis maximis 11 cm. longis, 

 1 cm. latis, lineari-acuminatis; textura minus firma. 



The following variety is very dilTerent, in habit very similar to small forms 

 of var. rivulorum, but so unlike this in its few reduced pinnæ, quite glabrous leaf 

 and its inframedial sori, that it possibly represents a good species. 



var. geraensis n. var. 



Brazil: Minas Geraes, Caldas, in ripa aquaeductus, Hj. Mosen n. 4622 (HS). — 

 Ibid, ad rivulum campi, Hj. Mosen n. 2153 (HS). 



Varietas (vel potius subspecies) D. oppositae, habitu typo similis, differt: lamina 

 2— 2^/3 dem. longa, c. 7 em. lata, glaberrima, pallida, firmo-herbacea, ad basin 

 brevius attenuata; stipitibus (5 — 8 cm. longis, pinnis reduetis paucis, 3 — 4 jugis, 

 inflmis hastatis nee auriculiformibus, mediis c. 4 cm. longis, 7—8 mm. latis, basi 

 dilatatis et aërophoro parvo instructis, subtus dense glandulosis, glandulis aureis. 

 Venis 3 — 5 jugis; soris eostulae magis quam margini approximatis. Indusiis persi- 

 stentibus, glandulosis. 



26. Dryopteris riopardensis Rosenstock, Hedwigia 46: 121. 1906 — [Fig. 17]. 



Type from Brazil: Rio Grande do Sul, Rio Pardo, leg. Jürgens n. 282 (HR!). 



Intermediate between D. opposita and D. pachyrachis var. platyrachis, dilTering 

 from both in its thin texture, from the former also in pubescence, being nearly 

 quite glabrous, in its long pinnæ with very obtuse segments and in its medial 

 sori, from the latter, though resembling it in pubescence, in the absence of the 

 large red glands on the underside and in having more pair of reduced pinnæ and 

 a much shorter stem. 



27. Dryopteris coarctata (Kze.) C. Chr. Ind. 258. 1905. 



Syn. Aspidiiim coarctatum Kunze, Bot. Zeit. 1845: 287; Mett. Aspid. 77. 



Type from Venezuela: Caracas, leg. Moritz n. 80 (HB!), also Pendler n. 177 

 (HB) and Eggers n. 13102 (HH). 



Eudryopteris rhizomate erecto, nudo, radicibus numerosis ramosis instrueto. 

 Stipitibus dense fasciculatis, brevissimis, raro ad 2 cm. longis, rigidis, pubescenlibus, 

 ad basin squamis rufis, acuminatis, ^/s cm. longis instructis. Lamina oblanceolata, 

 2—3 dem. longa, supra medium 3—4 cm. lata, versus apieem acuminatum breviter 

 attenuata, versus basin longe et gradatim attenuata, membranaeea, in siecitate fra- 

 gillima, pallide viridi ad raches costasque utrinque pubescente, sparse ciliata, supra 

 minute hirta, subtus dense et minute glandulosa, bipinnatiflda. Pinnis approximatis, 

 alternis vel suboppositis, horizontaliter patentibus, numerosis (30 — 40 jugis), multis 

 (10 — 15 jugis) inferioribus gradatim reduetis (Typus II), auriculiformibus vel tri- 

 angulari-hastatis, infimis vix V2 cm. remotis, maximis supramedialibus Vh — 2W2em. 

 longis, ' j cm. lalis, oblongis, basi dilatata sessilibus, obtusis vel rotundatis vel inter- 

 dum subaeutis, apice crenato vel integro excepte pinnatifidis. Laciniis 6 — 8 jugis, 

 ovato-oblongis, obtusis, integris, marginibus paulum revolutis, lacinia basali anteriore 



