3ö6 Algae. — Fungi. — Pathologie. 



the lack of spicules, argues strongly against such reference 

 to the sponge group. The presence of a plexus of interlacing 

 filaments directs attention to possible connection with Slphonous 

 Chlorophyceae of which the genus Codliim appears to furnish 

 the most direct means of comparison, It is thus regarded as 

 possible that Codiiim may represent the generalised type of 

 Buthrotrephls, which in all probability embraces various genera, 

 the precise limitations of which can not be determined in the 

 absence of recognizable fructification and definite histological 

 Clements. D. P. Penhallow. 



Protic, G., Treci prilog k poznavanju flore resina 



Bosne i Hercegovine. (DritterBeitrag zurKennt- 



niss der Algen Bosniens und der Hercegovina.) 



(Glasnik Zemalj. Muzeja u Brosni i Hercegovini. Band Hl. 



p. 201—226. Sarajevo 1901.) 



In diesem Beitrage führt Verf. 338 Algenarten aus Westbosnien an. 

 worunter die Diatomaceen bereits ein Drittel einnehmen. 



Adamovic (Belgrad). 



COLLINS, Frank Shipley, The Algae of Jamale a. (Procee- 



dings of the American Academy of Arts and Sciences. 



XXX VII. November 1901. p. 231—270.) 



A list of algae, mostly marine, the result of three different collec- 

 tions. The majority are from Port Antonio and Kingston although 

 specimens are listed from Ora Cabessa, Rio Novo, Runaway Bay, Rio 

 Bono, Montego Bay, St. Ann's Bay and Port Maria. A series of tables 

 comparing the marine flora of Jamaica with those of New England, Great 

 Britain, the northern coast of Spain, the coast of Morocco, the Canary 

 Islands and Puerto Rico accompany the article. The following nevv or 

 recently described species are included: 



Oscillatoria princeps forma purpurea n. f., Lyngbya confervoides 

 forma violacea n. f. Scytonema conchophilum Humphrey ms., Diplochaete 

 solitaria n. g. and sp., Chaetomorpha intertexta n. sp., Dictyerpa famai- 

 censis n. g. and sp., Goniotrichum Hnmphreyi Collins, Cordylecladia 

 Peasiae n. sp., Callithamnion byssoidenm var. famaicensis Collins, Anti- 

 thamnion Biitleriae n. sp. Moore. 



Harper, R. H., Binucleate cells in ceriain Hymenomycetes. 

 (Botanical Gazette. Bd. XXXIII. p. 1—24. pl. I. 1902.) 



Maire's conclusions as to the binucleated condition of the 

 cells of the young carpophore of various Hymenomycetes dis- 

 cussed at length. The structure of the hymenium of Hypoch- 

 nus subtilis is described. The same is very loose and permits 

 tracing the various steps in the developement of the basidium. 

 Harper finds „that the entire fruiting body is composed of a 

 series of cymosely branched hyphal Systems". The cells of 

 the old hymenium contain regularly two nuclei. The young 

 basidia are formed from the apical cells of the old layer, which 

 contain but two nuclei; so also the stalk cells after the basidia 

 are cut off. The process of fusion of the two basidial nuc- 



