-87" 



pointed out by Nylander. Polymorpha is to be distinguished from pollinaria 

 on account of its larger, rigid thallus, completely longitudinally costate-rugose 

 laciniae, and its always granular soredia. The membranous, inflated, at length 

 powdery-sorediate apices of the flaccid laciniae of pollinaria served to distinguish 

 it from the present species, which seems to be invariably saxicolous and geneially 

 maritime. The at first granular soredia and often partially rugose laciniae of 

 specimens of pollinaria var. humilis often lead one to determine such planes as 

 polymorpha. The material from Yukon (Bull. Torr. Bot. Club 38: 292. 191 1.) 

 was determined by the author as this species. The specimens weie collected on 

 ' 'Slide Rock, " are granulate-sorediate, but their small sized, subpulvinate, flaccid, 

 subrugose laciniae make me believe that they should be referred to humilis. 



Ramalina polymorpha var. emplecta Ach. 



Synonymy: Parmelia polymorpha e. emplecta Ach. Meth. Lich. 267. 1803. 



Ramalina polymorpha ^ emplecta Ach. Lich. Univ. 601. 1810. 

 Type: In the Acharian herbarium, Universitetets Botaniska Institution, 

 Helsingfors, fide author. 



Type locality: Not given. 



Original description: "laciniis erectis teretiusculis ramosissimis, ramis 

 tenuissimis pulverulento-scabridis acuminatis. " 1. c. 



Figure: Ach. Kongl. Vet. Acad., Nya Handl. 18: pi. 11, f. 3. P. Z. 



Diagnosis: Thallus caespitose, compressed, laciniae much branched, apices 

 slender and acuminate. 



Decription: Thallus caespitose (max. length 5 cm.), rigid, virescent at 

 length stiamineus; cortex glabrous, often foraminous, longitudinally rugose, 

 granular-sorediate; laciniae much branched, compressed, apices acuminate. 

 Apothecia unobserved. 



Substrata: On maritime rocks. 



Distribution: St. Paul's Island, Alaska. 



Observations: Nylander (Enum. Lich. Freti Behr. 85. 1888.) states that 

 Dr. Bean's specimen, recorded as the type species by Rothrock (Proc. U. S. 

 Nat. Mus. 7: i. 1884.), is referable to this variety and constitutes our only 

 record. The variety is characterized by its many slender, acuminate apices. 



Ramalina pollinaria (Westr.) Ach. 

 Synonymy: Lichen pollinarius Westr. Kong. Vet. Acad., Nya Handl. 

 1795 (publication date 1794, fide Ach.). 



Ramalina pollinaria Ach., Lich. Univ. 608. 18 10. 



Type: Westring type unknown. In the Acharian herbarium, Universitetets 

 Botaniska Institution, Helsingfors, are the varietal types, fide Dr. Fred. Elfv- 

 ing. 



Type locality: Sweden? 



Original description: "foliaceus erectus cespitosus: foliis divisis subla- 

 cunosis polHne conspersis; peltis terminalibus concoloribus. " 1. c. 



Figure: Ach. Kong. Vet. Acad., Nya Handl. \%'.pl. 11, J. 2F. i^gy. 



