35 281 



Rhizome wanting. Resembling D. columbiami but soil medial, hairy only on 

 the vascular parts, glabrous between the veins and the short hairs on the rachis 

 patent. Sporangia glabrous. 



12. Dryopteris lepidula Hieron. Hedwigia 46: 328 tab. 4 tig. 4. 1907. 

 Type from Columbia: Mirallores, 2700 m., leg. Stiibel n. 332 (HB!). 

 Leaf abruptly narrowed downwards with 2 pair of very small, auriculiform 

 pinnæ. Very like D. concinna, but the sporangia glabrous. Rhizome wanting. 



13. Dryopteris Lindmani n. sp. — [Fig. 9]. 



Brasilia: Prov. S.Paulo, leg. Hj. Mosen, n. 4623 (HS!). 



Eiidryupteris rhizomale suberecto, 2 cm. crasso. Stipitibus I'asciculatis, griseo- 

 stramineis ad basin fuscescentibus, breviter pubescentibus et ad basin squamis 

 brunneis, tenuibus, acuminatis instructis, foliorum steriliuni 2 — 3 cm. longis (ad 

 pinnas infimas auriculiformes), foliorum fertilium 7 — 10 cm. longis. Foliis sub- 

 dimorphis: sterilibus brevius stipitatis, lamina 2 — 2'/i dem. longa, c. 10 cm. lala, 

 late-ovata, ad apicem pinnatifidum breviter acuminata, ad basin abrupte reducta; 

 pinnis 2—3 jugis imis valde reductis, auriculiformibus, trilobis, c. 1 cm. inter se 

 distautibus, superioribus 1—2 jugis paulum reductis, reflexis, ceteris approximatis, 

 contiguis, horizontalibus, alternis vel suboppositis, sessilibus, oblongo-linearibus, 

 breviter acuminatis, medialibus maximis, 5 cm. longa, 1 cm. lata. Laciniis numerosis 

 approximatis — sinubus acutis, angustis — ala 1 mm. lata connectis, linearibus, 

 paulum obliquis, integris, obtusis vel subacutis, vix ultra 1'/= mm. latis, basalibus 

 aequalibus vel pauIo longioribus. — Lamina folii fertilis lougius slipitata, 

 4'/a — 5 dem. longa, c. 10 cm. lata, lanceolata ad apicem acuminatum sensim alte- 

 nuata, versus basin abrupte reducta. Pinnis infimis 3—4 jugis auriculiformibus, 

 3 — 4 cm. inter se distantibus, superiore jugo paulum reducto, reflexo, superioribus 

 horizontalibus, oppositis vel suboppositis, 2 2^'i cm. distantibu.s, sessilibus, acumi- 

 natis, lanceolatis, 5 cm. longis, medio l'/i — VI-2 cm. latis. Laciniis acutis, subfal- 

 catis, basalibus interdum paulo brevioribus. — Rachibus gracilibus, dense sed bre- 

 vissime pubescentibus. Faciebus ad costas costulasque magis ad venas utrinque 

 sparse pilosis, costis subtus dcnsius hirtis. Textura firmo-herbacea, colore folii 

 sterilis gramineo-viridi, fertilis pallidiore. Venis 7 — 8 jugis, indivisis. Soris globo- 

 sis, submarginalibus; indusio nullo. 



This species somewhat resembles D. oligocarpa but very different by its sud- 

 denly narrowed lamina (about typus V). The subdimorphism described is, I think, 

 no constant character; I find, namelj% a few sori on the short leaves. The s[)ecies 

 is, however, well-marked by its closely-placed, narrow, linear segments. In the shape 

 of the lamina it resembles D. Mosenii, which is a considerably larger species with 

 creeping rhizome. 



14. Dryopteris lustrata (Hier.) C. Chr. Ind. 276. 1905. 



Syn. Nephrodium lustiaium Hieron. Engl. Jahrb. 34: 443. 1904. 



37" 



