24 



CARL SKOTTSBERG, MARINE ALG^E 2. RHODOPHYCEiE. 



D. epiglossum J. Ag. Sp. Alg. III, p. 496. — Fig. 7 a — b. 



Syn. D. crassinervia, Hook. Fil. et Harv. Fl. Ant. II, p. 471 p. p.; Paraglossum 

 epiglossum J. Ag. Sp. Alg. III: 3 p. 217. 



Falkland Islands: Westpoint Island, in tide-pools on algae, scarce (St. 

 8 a, 5. 12. 07, <J, 8 b - - one large specimen $). Cape Pembroke, in tide-pools (St, 3 b, 

 7. 11.07, e). 



D. epiglossum bears a superficial resemblance to Apoglossum ruscifolium, Hypo- 

 glossum, etc., but is larger than either of tliese. The f ronds are obtuse or acute. My 

 largest specimen (St. 8 b) measures 11,5 cm, two smaller ones from St. 8 a 7,5 and 4,5 cm, 

 respectively. My smallest specimen (from St. 3 b) is figured (fig. 7 a). The sperma- 

 tanges and tetrasporangia form lines along the costa on leaves of all sizes and orders, so 





Fig. 6. a — C: Delesseria fuegiensis: a — b tetrasporophylls; C cystocarpic leaflets; d same of D. lancifolia. All X 17. 



that special sporophylls are wanting. The cystocarps are developed on the costa of 

 leaves of variable size, one or more on each leaf. Tn this respect as well as in the size, 

 lack of secondary nerves etc. it differs from D. lancifolia and Larsenii. It differs from 

 Apoglossum (ruscifolium as type) in the formation of the veins and in the anatomical 

 structure; from Hypoglossum in the structure of the apex, which is the same as in D. 

 sanguinea (fig. 7 b), as is also the anatomical structure. 



Agardh quotes Falkland (Herb. Gray) as type locality. There are three speci- 

 mens in his herbarium. No. 31753 (Falkland Isl. 1859, Capt. Abbott) bears the remark 

 »abnormal state of D. Davisii ». It is a bad specimen, possibly belonging to Nitophyllum 

 condensatum. No. 31754, also collected by Abbott 1859 at Falkland (named »D. cras- 

 sinervia»), is the same as I ha ve called D. epiglossum and a good specimen of this, 

 which served Agardh for his description, though lie seems to have regarded no. 31753 

 as an old state of the same. No. 31754 is the type specimen of D. epiglossum. No. 

 31755, Gaudichaud no. 26, is only a fragment and must be left out of consideration. 

 It bears the name »D. niscifolia». Another specimen of Abbott's (all these came from 



