77 



323 



superioribus approximatis, inferioribus 2"i cm. remotis, suboppositis, horizontalibus 

 vel paiilo erectis, inferioribus 5 — 6 jiigis abrupte reductis, auriculiformibus, sequen- 

 tibus 2 jugis abbreviatis, 6 — S cm. longis, mediis maximis, c. 1Ü cm. longis, 2 cm. 

 latis, sessilibus, apice caudato-acuminalo integro excepto ad alam 1 mm. latam 

 pinnatifidis. Laciniis 20 — 30 jugis, patentibus, siiiubus rotundis separatis, parum 

 obliquis, aculis vel subobtusis, basalibus aequalibus vel paulum abbreviatis. Venis 

 11 14 jugis, indivisis. Soris margini approximatis, exindusiatis ; sporangiis glabris. 

 This new species much resembles D. concinna in pubescence, but it difTers 

 by its size, more veins and glabrous sporangia. It also comes near to D. scalaris, 

 but its lamina narrows rather suddenly towards its base, not through a long row 

 of gradually reduced pinnæ, and it ditïers from the other species of <his group by 

 its very fine, nearly microscopical pubescence without long hairs. 



71. Dryopteris limbata (Sw.) O. Ktze. Rev. Gen. PI. 2: 813. 1891. 



Syn. Aspidium limbatum Sw. Schrad. Journ. 1800 -: 35. 1801; Syn. Fil. 50.251. 

 1806; Nephrodium limhatiim Desv. Mém. Soc. Linn. Paris 6: 260. 1827; Bak. Syn. Fil. 

 269; Amanropelta Breutelii Kunze, Farnkr. 1: 109 tab. 51. 1843; Aspidium Breutelii 

 Mett. Pheg. und Aspid. 85 n. 204. 1858. 



Type from Guadeloupe (non vidi). I have seen a specimen from the same 

 island, leg. L'Herminier n. 168 (HB), and another from St. Kitts, leg. Breutel (HB). 

 — Jenman has found the species in Jamaica. 



A very characteristic species, not to be confounded with others, still a near 

 ally of D. Sprengelii. Sori are placed very near the edge on short teeth, in which 

 the veins run out, and often they protrude beyond the margin. The indusium is 

 large and persistent. In sterile pinnæ, which often are considerably broader than 

 the fertile one, the veins are often furcate. Pinnæ 2 dem. or more long, 2^/2 — 3^4 cm. 

 broad. The enlarged basal segments cover the rachis as described by Mettenius. 



72. Dryopteris scalaris (Christ) C. Chr. — [Fig. 47]. 

 Syn. Aspidium scalare Christ, Bull. L'Herb. Boiss. II. 6: 159. 1906. 



Fig. 47. D. scalaris (Christ) C. Chr. Donnell-Sinith n. 8357. 



