LICHENS 71 



2. Verrucaria maura Wahl. 



Verrucaria maura Wahlenberg in Acharius, Meth. Lich. 19. 1803. — Sow- 

 ERBY, Eng. Bot. /. 24^6. 



Sitka (Trelease, 958) ; Port Wells, Prince William Sound (Tre- 

 lease, 934). Rothrock reports it from Fort Alexander, in Bristol 

 Bay, and from Cook Inlet ; Nylander, from St. Lawrence Island. 



3. Verrucaria mucosa Wahl. 



Verrucaria mucosa Wahlenberg in Acharius, Meth. Lich. Suppl. 23. 1803. 

 Orca (Trelease and Saunders, no number, and 303) . New to Alaska. 

 Though new to Alaska, this has been reported from St. Lawrence 

 Bay, Siberia, by Nylander. 



4. Verrucaria fuscella (Turn.) Ach. 



Uchen fuscellus Turner, Trans. Linn. Soc. 7 : 90. t. 8. fig. 2. 1804. — Sow- 



ERBY, Eng. Bot. /. JSOO. 

 Verrucaria fuscella Acharius, L. U. 289. 18 10, 



Hot Springs, Baranof Island (Trelease, 959, 960) . On rock. New 

 to Alaska. Reported by Tuckerman in Genera Lichenum from only 

 Alabama and Vermont. 



5. Verrucaria thelodes Smrft. 

 Verrucaria thelodes Sommerfeldt, Suppl. 140. 



Hidden Glacier Inlet, Yakutat Bay (Trelease, 946). On rock. 

 The species is credited to Port Clarence by Nylander. 



6. Verrucaria fulva sp. no v. 



Thallus a small rounded body from .75-1.5 mm. in diameter, either 

 distinct or aggregated in masses which may equal 5 mm. in diame- 

 ter. The thallus is of a creamy color, chinky-areolate, nearly or 

 entirely concealing the embedded apothecium. Gonidia abundant, 

 scattered throughout the medullary layer. Apothecia .20— .35 mm. 

 in diameter, dark brown, ampithecium yellowish-brown. Paraphy- 

 ses distinct in young specimens, gelatinizing in older ones. Spores 

 muriform-multilocular, brown, ||r|| /Jt. Number of spores in ascus 

 unknown. 



Collected by Prof. William Trelease at Port Wells, June 26, 1899, 

 on rocks (No. 918) and on moss (No. 1175). Type specimen (No. 

 918) in the Herbarium of the Missouri Botanical Garden ; a duplicate 

 in my own herbarium. 



The fact that the walls of the ascus gelatinize so early rendered it 

 impossible to determine the number of spores in an ascus. In no 

 case were mature spores seen within the ascus. 



