32 Notes on the Morphology of the Fncacctf. 



separated from each other by a narrow strand of tissue (plate TX., 



fig. 2). 



The plants examined by me are dioecious. The male conceptacles do 

 not differ from those of other Fuel ; the female conceptacles are full of 

 oogonia, with multicellular hairs interspersed among them. 



The oogonium rises on a broad base from the wall of the conceptacle, 

 one division cutting off the large solitary oosphere from the pedicel which 

 is buried in the wall of the conceptacle, and probably therefore resembles 

 that of Pelvetia, where the pedicel cell is short, and does not elongate 



to form a stalk. 



A. LORRAIN SMITH. 



EXPLANATION OF PLATE IX. 



Fig. i. Coccophora Laiigsdnrfii. Natural size. 



Fig. 2. Receptacle enlarged ( x 5). 



Fig. 3. Longitudinal section of branch and base of leaf ( x 150). 



Fig. 4. Transverse section of stem ( x 150). 



Fig. 5. Male conceptacle ( x 150) 



Fig. 6. Antheridia ( x 450). 



Fig. 7. Female conceptacle ( x 150). 



SEIROCOCCUS AXILLARIS GREV. 



THIS Alga was found at Port Dalrymple by Robert Brown during 

 his expedition to New Holland at the beginning of the century. He 

 named it Fucus axillaris, and under that name placed it in the Herb. 

 Brit. Mus. In his MS. it is thus described : ' Fucus fronde plana ra- 

 mosissima ramis ramulisque alternis, integris, coriaceus aveneis siliquis 

 marginalibus confertis pedicellatis torulosis. Inter rejectimenta maris, 

 Port Dalrymple.' 



He communicated specimens to Dawson Turner, who, in his 

 Fuel, vol. iii., p. 28, tab. 146, figured and described it under Brown's 

 name. Turner referred Mertens' Fiicus scorteus (Mertens MS. fide D. T.) 

 to this species as Var. /3; but, from an examination of the series in the 



