a las 
1055) are cut exactly as D. atrogrisea, the larger ones (no. 3268 a) are cut once 
more, the larger tertiary segments being exactly similar to the secondary ones of the 
smaller form. : 
Guatemala: Pansamald, Dept. Alta Verapaz, v. TérckHemm ed. Donn. SmiTH nr. 1055 (W, type-spe- 
cimen distr. as Nephrodium villosum Pr?); between Sepaquité and Secanquim, Maxon et Hay 
nr. 3268 a (W). 
331. Dryopteris inaequalifolia (Colla) C. Chr. comb. noy. 
Syn. Polypodium inaequalifolium Colla, Mem. Acad. Turino 36: 49. 1836. 
Polypodium Berteroanum Hook. sp. fil. 4: 269. 1862 (excl. specimens from the 
continent, not Spr. 1827). 
Dryopteris subincisa *Berteroana C. Chr. Ind. 296. 1905. 
Nephrodium villosam Hemsley, Challenger Exp. Bot. part. II: 
Dryopteris villosa var. Berteroana C. Chr. Ark. f. Bot. 10*: 13. 13i0 
Dryopteris Skottsbergii C. Chr. supra p. 15. 
Type from Juan Fernandez, leg. BERTERO nr. 1550 et 1660; fragments from 
Budapest! 
Hooker’s name for this species being invalidated by an older name I renamed 
it D. Skottsbergii in honour of Prof. Cant SkorrsBeRG who has contributed largely 
to our knowledge of the vegetation of temperate South America and Juan Fernandez 
and who has collected, during his exploration of the islands in 1916—1917, a very 
beautiful lot of specimens of the fern in question. While studying in detail his unique 
collection of ferns from Juan Fernandez — and while reading the proofs of the 
present work — I found that the hitherto unidentified Polypodium inaequalifolium 
Colla described from a basal pinna is just my D. Skoftsbergii; that my identification 
is right is further confirmed by two fragments from BERTERO’s original collection 
received from Prof. Ki0MMERLE, which are labelled Polypodium an n. sp.?, just as 
quoted by Cotta. My proposed name D. Skottsbergii must, therefore, be stopped. 
D. inaequalifolia reaches a total height of more than 2 meters; some individuals 
have an epigeous caudex nearly 1 meter high bearing at its top a dense crown of 
leaves, 1 m or more long. Basal scales blackish castaneous, thick, entire, lanceolate, 
2cm or more long. Stipe and rachises stramineous with few similar but much 
smaller scales, not rarely nearly quite naked. Lamina ovate-deltoid, the largest pinnz 
seen 50 cm long, 25 cm broad, firm, sometimes subcoriaceous, fresh-green, when dried 
brownish, in cutting varying from tripinnatifid to quadripinnatifid. Lower tertiary 
_pinnules quite free, the middle and upper ones sessile and decurrent, oblong, 1.5— 
2cm long, 4—8 mm broad, oblique, subacute, the basal anterior one slightly or not 
produced, the posterior scarcely reduced, nearly all deeply lobed into close, broad, 
acute or subacute lobes. Veins immersed and obscure; midvein of an adnate basal 
posterior segment of an upper pinnula springs out from the costa about 2mm from 
the base of the costula. : 
D. K. D. Vidensk. Selsk. Skr., naturvidensk. og mathem. Afd. 8. Riekke, VI, ! 10 
