LICHENS AND LICHENICOLOUS FUNGI OF THE QUEEN-CHARLOTTE-ISLANDS, BRITISH-COLUMBIA, CANADA .2. THE CLADONIACEAE

The Queen Charlotte Islands, off the west coast of British Columbia an d with a hypermoist, oceanic climate, has 44 taxa in the Cladoniaceae: 5 species and I forma of Cladina, and 34 species with 3 additional su bspecies and I variety of Cladonia. Two species and one subspecies are described as new to science: Cladonia albonigra Brodo & Ahti, Cladoni a schofieldii Ahti & Brodo, and Cladonia ecmocyna Leight. ssp. occiden talis Ahti. In addition, one new combination is made: Cladonia novochl orophaea (Sipman) Brodo & Ahti. Cladonia homosekekaica Nuno, although not part of the Queen Charlotte flora, is also described and discussed . Chemical variation in the Cladoniaceae is examined critically, and m any taxa formerly recognized at the species or infraspecific levels ar e reduced to unnamed chemotypes. The following synonymies were made or confirmed: Cladina aberrans (Abbayes) Hale & W.L. Culb. =Cladina stel laris (Opiz) Brodo; Cladonia squamosa var. subsquamosa (Nyl. ex Leight .) Vain. =Cladonia squamosa Hoffm.; Cladonia pseudostellata Asahina =C ladonia uncialis (L.) F.H. Wigg.; Cladonia japonica Vain. =Cladonia cr ispata (Ach.) Flot; Cladonia pseudorangiformis Asahina =Cladonia waini oi Savicz. A thamnolic acid chemotype of Cladonia bellidiflora (Ach.) Schaer. and a thamnolic and usnic acid containing chemotype of Cladoni a umbricola Tonsberg & Ahti are common on the Charlottes. Cladonia sin gularis S. Hammer is reported as new to Canada based on a specimen fro m Vancouver Island. Cladonia macroptera Rasanen, Cladonia polydactyla (Florke) Spreng., Cladonia pseudomacilenta Asahina, and Cladonia subsu bulata Nyl. are excluded from the North American flora. Cladonia kanew skii Oksner is reported as new to Norway and Europe.