MARINE ALG^.— G. DICKIE. 
47 
There are also included in the present paper, for convenience, 4 freshwater 
species : — lioslrychia varja, Vaucheria Dillwynii, Viva cristata, and Frumola 
jlaviatil'm. 
1. D’Tlrvillea utilis, Bory ; Flor. Antarct. 454; Dickie in Journ. lAnn. 
Soc. XV. 43, 198 ; Farlow in Bull. V. S. Nat. Mas. 3, 30. 
On exposed rocks at and helow half-tide level, not in very sheltered situations ; 
abundant. — In the Southern ocean, between lat. 45° and 55° S., reaching to lat. 05 S. 
in the meridian of New Zealand (Hooker). 
2. D’Urvillea Harveyi, Ilook.f. Flor. Antarct. 450, t. clxv., clxvi. ; Dickie 
in Journ. Linn. Soc. xv. 44, 198; Farlow in Bull. V. S. Nat. 3his. 3, 30. 
In positions still more open than D. utilis. (Cape Horn and the Falklands.) 
1. Desmarestia Rossil, Nook. f. and Nan., Flor. Antarct. 407, t. clxxii., 
clxxiii. ; Dickie in Journ. Linn. Soc. xv. 44, 198. 
Swain’s Bay on rocks in 3 fathoms, at the end of an island about 2 miles rvithin 
the entrance of the bay, exposed to a slight swell from the open sea ; local and not 
common, Eaton. (Fuegia, Falkland Islands, Heard Island, Moseley.) 
2. Desmarestia chordalis, Nook./, and Nan., Flor. Antarct. 407 ; Dickie 
in Journ. Linn. Soc. xv. 44, 198. 
Swain’s Bay, in 3 fathoms, with the preceding ; very local, Eaton. Christmas 
Harbour, Hooker, Moseley. (Kerguelen Island only.) 
A very graceful species. The fronds, upwards of 4 feet in length, are arranged 
in a manner similar to those of a fern, and cause the plant, as seen in situ from a 
boat, to bear a general resemblance in contour to such species as Aspidium filix- 
mas. 
3. Desmarestia aculeata, Lyngh. Var. media, Grec.; Nook. f. and 
Nan., Flor. Antarct. 466; Dickie in Joiirn. Linn. Soc. xv. 44, 198. 
Between tide-marks, Swain’s Ba.j, Eaton. Cockburn Island (7/oo7er) ; and in 
North temperate and Arctic seas.) 
4. Desmarestia viridis, Lamx. ; D. vimdis (and var. 0. DISTANS), Nook., 
Flor. Antarct. ii. 466 ; Dickie in Journ. Linn. Soc. xv. 44, 198 ; Farlow in Bull. 
V. S. Nat. Mus. 3, 30. 
Christmas Harbour, Nooker, Moseley. In 2 fathoms, Eoyal Sound and Swain’s 
Bay ; common, Eaton. (Marion Island ; the Falklands ; Cape Horn ; American 
coast from New York northwards; Unalaschka ; Hunde Island; W. coast of 
Em’ope.) 
1. Macrocystis pyrifera, ,• Flor. Awto-rf. 461, t. clxix., clxx. ; Dickie 
in Journ. Linn. Soc. xv. 44, 198 ; Farlow in Bull. V. S. Nat. Mus. 3, 30. 
Abundant along rocky portions of the coast. (Antarctic Sea, from lat. 40° to 
60° S. ; New Zealand; Indian Ocean; Marion Island ; Chili; California.) 
1. Lessonia fuscescens, Bory. ; Flor. Antarct. 457, t. clxvii., clxviii. A., 
and clxxi. I). ; Dickie in Journ. Linn. Soc. xv. 44. 
