b CARL CHRISTLNSEN AND CARL SKOTTSBERG 



have to do with a form different from densifolia. It may be described as 

 follows. 



Lamina luteo-viridis, pinnis plerumque ovatis secus costam parcissime 

 pilosis, nt in var densifolia; differt son's profunde immersis utrinque late foliaceo- 

 alatis, fere ad medium bipartitis, labiis rotundatis, distincte dentatis, extus 2 — 4 

 cristis longitudinalibus dentatis instructis, rcceptaculo ad maturitatem exserto. 



In the moss carpets on trunks and branches of trees, in the elevated 

 forests of Masatierra, where it has not been found below 450 m; on Masafuera 

 also in the heath of the 'highland, among rocks. (Fertile in Jan.) 



Masatierra: C. Chifladores, in the innermost part of the Frances valley, 

 on Drimys Winteri c. 500 m (no. 1128); ridge between Q. Laura and Q. Piedra 

 agujeriada c. 650 m (no. 1129); on the main crest of the island, above Pangal, 

 on Drimys c. 800 m (no. 1127); V. Colonial, along the road to Portezuelo, on 

 Drimys c. 450 m (no. 136); C. Salsipuedes, brushwood on the ridge, 615 m, 

 and in 0. Helechos, on Drimys, 660 m (no. 284). 



Masafuera: Heath above O. del Mono, c. 850 m (no. 421); rocks at Las 

 Torres, 1350 -1370 m (no. 421 b — see below); S. slope of Los Inocentes, in 

 Dzcksom'a-forest on the trunks, c. 950 m; also near the highest summit, 1450 m 

 in moss mats (no. 381); Q. Loben'a, between blocks in the stream. 



Var. densifolia has 1 — 8 sori terminal on the pinnae, the lips obscurely 

 toothed and faintly crested, the wings on both sides much narrower. The 

 typical form of the species, from the Falkland Islands, has terminal sori with 

 very short lips; it turns brown when dried and is much more hairy, with more 

 oblong pinnae. Var. fernandeziana is generally small with only 2—5 pairs of 

 pinnae which are close, often imbricated and clasped along the midrib. There 

 is, however, also a form with more distant and more oblong pinnae (no. 421 b), 

 a form corresponding to var. elongata Hook, of the type; the special characters 

 are due to external conditions (moisture and shade). 



Area of distribution: South Chile to Fuegia, Falkland Islands; the var. 

 fernandeziana endemic in Juan F"ernandez. 



Hymenoglossum Presl 



5. H. omentum (Cav.) Pr., Hymenoph. 35 (1843); v. d. Bosch, Ned. Kr. 

 Arch. 4: 385. — Syn. Hymenophyllum cruentum Cav. Descr. 275 (1802) et auctt., 

 Hemsl. 67; Johow 1893: 40 f. 26, 1896: 169; C. Chr. Ind. 359. 



Plate 1 Fig. 1. 



In the montane forest belt, with moss on the soil or on trunks of trees, 

 scarce. (Fertile Dec— Jan.) 



Masatierra, not rare in the central parts: V. Anson, NE. slope of La 

 Damajuana c. 430 m (no. 353); slopes of El Yunque, 480 m; V. Colonial, C. 

 Central 535 m; along the road to Portezuelo, c. 500 m (no. 67); north wall of 

 Co Piramide, a narrow ledge 600 m; 0. Villagra, mountain spur W. of El 

 Yunque, c. 500 m and SW. face of Co Piramide, among brushwood, 590 m. 



