Some new species and distribution records of Rhizopogon in North America

Abstract
The following 12 new spp. and 2 vars. of Rhizopogon are described from collections made around Nelson, British Columbia, and Santa Fe, New Mexico R. amoenus; R. armeniacus; R. canadensis; R. cinnamomeus: R. columbianus: R. inversus; R. padhydermus; R. pjnjonensis vars. pinyonensis, sublutes-sublutecens and albidus: R. praestans; R. tephrogleba: and R. vesfitus. Additional informaffon is presented on 4recently described spp. and the ranges of 29 spp. are extended. It has been found that, when rainfall conditions are favorable, a distinctive and characteristic Rhizopogon flora occurs under pinyon pines in the pinyon pine-juniper forests of the arid regions of the southwest.

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