Abut/acts, <% 



ABSTRACTS. 



1. Marine Algae from the Kermadecs. By A. and E. S. Gepp. 

 (Journal of Botany, vol. 49, pp. 17-23; 1911.) 



A list of marine Algae collected by Mr. R. B. Oliver on the Kermadec Islands 

 in 1908. The Kermadecs are washed by oceanic currents from the north and 

 south-west, the latter being the stronger. This is plainly reflected by the algal flora, 

 which is principally New Zealand. The following is the complete list. The dis- 

 tribution of the species is enclosed in brackets. 



Ulva Lactura L. (general) ; U. laetevirens Aresh. (South Australia, Tasmania) : 

 Enteromorpha cornpressa C4rev. (Atlantic and Pacific, both north and south) ; Clado 

 phora fusca Martens (Borneo) ; Vaucheria sp. ; Caulerpa racemosa var. uvifera 

 Weber v. Bosse, forma intermedia W. v. B. (Indian and Pacific Oceans, West 

 Indies); Codium tomentosum, Stackh. (general); Durvillea sp. ; Hormosira 

 Banksii Dene. (Australia, Tasmania, New Zeland) ; Carpophyllum maschalocarpum 

 Grev. (New Zealand) ; G. elongatum comb. nov. = Cystophora elongata Dickie (New 

 Zealand) ; G. Phyllanthus Hook and Harv. (New Zealand) ; 0. plumosum J. Ag. 

 (New Zealand); Taenia australasica J. Ag. (Victoria); Gymnosorus nigrescent 

 J. Ag. (North, South, and West Australia) ; Dictyota prolifirans A. and E. S: Gepp 

 (New South Wales and Queensland) ; Sargassum fissifolium J. Ag. (Queensland) ; 

 Chantransia sp. ; Galaxaura sp. ; Zanardinia marginata J. Ag. (North and South 

 Atlantic, North and South Pacific. Indian Ocean) ; Gelidimn longipes J. Ag. (New 

 Zealand) ; Pterocladia capillacea Born. (Atlantic, Mediterranean, Cape of Good 

 Hope, Indian Ocean, China, Japan, Australasia) ; Gracilaria confervoides J. Ag. 

 (Atlantic, Pacific, and Indian Oceans) ; Laurencia Forsteri J. Ag. ? (South and West 

 Australia); Plocamium brachiocarpum Kiitz (New Zealand); Martensia elegans 

 Her. (South Africa, West Australia, New South Wales); Nitopliyllum decumbens 

 (New Zealand) ; Delisea pulchra Mont. (Eastern Australia, Tasmania, New Zea- 

 land) ; Asparagopsis Sandfordiana Harv. (Western Australia and Queensland); 

 Euzoniella incisa Falk. (South-west Australia, Tasmania, New Zealand) ; Spongo- 

 rlomium Brownianum De Toni (West Australia) ; Peysionnellia rubra J. Ag. 

 (Adriatic, Polynesia) ; Melobesia sp. ; Amphiroa anceps Dene. (Norfolk Island) : 

 Gheilosporum elegans Aresch. (New Zealand, New South Wales) ; Gorallina 

 officinalis L. (general) : Coralhna sp. ; C. Guvieri Lamx. (South Australia, Tas- 



mania) 



L. C. 



2. Fructification of Macrocystis. By E. J. Hoffman. (Univ. of 



California Publications in Botany, vol. 4, pp. 151-158, pi. 1; 



1911.) 



A quite different result is arrived at to that of Smith and Whiting, for the 



specimens examined show that the sorus is not confined to the newly formed bladder- 



l^ss leaves alone, and also that the reproductive bodies appear in continuous instead 



of disconnected layers only in the furrows of the leaves. It is suggested that the 



authors named above worked with an entirely different species. 



L*. L- . 



3. Studies in Ornamental Trees and Shrubs. By H. M. Hall. (Univ. 

 of California Publications in Botany, vol. 4, pp. 1-71, pis. 1-11: 

 1910.) 



\v account with descriptions and remarks of a number of exotic ornamental 

 trees and shrubs cultivated in California. The following are the New Zealand 

 species : Pittosporum tenuifolium, P. crassifolium, P. Ralphu, P. eugenioide*. 

 Leptospermum scoparium, L. ericoides, Me.trosiderog robusla, M. tomentosa. 



3— Proc, pt. ii. 



