192 EXPEDITION TO POINT HARROW, ALASKA. 



of Phipimia dlyida, Arctagroslis (Colpmlium) lutifolia. Alupcfuntu aljtiitu*, QrapUephorum (l>npontia) 

 Fisclteri ; ami a.fulcuin, Poa licnisia, and /'. arclica, also a true Colpodium, the species undetermined. 



Dr. Farlow adds the following report upon the Lower Cryptogamia of the Point Barrow col- 

 lections: 



1 would make the following report ou the cryptogams collected at Point Barrow and submitted 

 to me for examination. The lichens consisted of three packages, each containing a single tuft of 

 impressed material. Two of the tufts were composed of Cctrarix ixl<tn<li<-n Ach., var. Delicti / 

 Bor., and the third of Alectona divcrgens (Ach.) Xyl., mixed with which were fragments of 

 Cetrttria, ttrctiea (Hook.) and TlntmiioUu rennicuJarin (Sw.i Schuer. There was a quantity of fungi 

 preserved in ajar of alcohol, but without notes of color, habit, &<... so that the specific determina- 

 tion is in their present condition impossible. The specimens, as far as could be told, seemed to 

 include two species of Ai/arlciix and one of Russula. 



The Algic collected were in part marine and in part from fresh water, some of them rough- 

 dried, and others prepared on mica. 



The marine species were as follows : 



Phyllophora internipta (Grev.) J. Ag., in excellent condition, with fully-developed iiernnthecia; 

 QdonthaUa dentata Lyngb., rather a broad form, with slender supra-axillary tetrasporic branchlets; 

 fragments of a sterile species which possibly belonged to Rhodymenia pfrtusa (Bail, and llarv.) J. 

 Ag. ; and fragments of an Viva which could not be determined. 



The fresh-water species included several specimens of a Prasiola, which may be referred with 

 some doubt to P. crispa (Lightf.) Kg. The specimens were considerably larger than the type, some 

 being nearly three inches long, but the habit was prostrate and bullate, and there was no distinct 

 stipe as in P. stipitata Suhr., a species previously reported from the Arctic regions of America. It 

 is possible that the species may prove to be new, but, as the specimens agree in microscopic 

 structure with P. crispa, it would not be well without further information to separate them as a 

 distinct species. Besides the Prasiola mentioned, the material on mica contained Pediastnim Bory- 

 anum Menegh, and two Cyanophycece, Aplianotliece stagnina A. Br., and Aplianacapsa Cantagnei 

 (Breh.). 



