— io8 — 
Solorina Ach. 
S. crocea (L. ) Ach. On earth, “the Dome,” no. 127, fertile. 
S. saccata (L.) Ach. On earth, Hunker Creek, no. I2 6, fertile. 
Pannaria (Delise) Tuck. 
P. Psoroma) hypnorum (Hoffm.) Koerb. On humus and charred wood, 
Dawson, no. 129; spores 17-20 x 10-11/*, ovoid-ellipsoid and colorless. On 
earth and wood, Hunker Creek, no. 128, spores 14-20 x 8-10 /*. 
P. (. Eupannaria ) brunnea (Sw.) Mass. On earth, Bonanza Creek, no. 
13 1 ; spores 18-23x9-12/*, ovoid-ellipsoid and colorless. On earth, Hunker 
Creek, no. 130. 
Collema Ach. 
C. ( Eucollema ) melaenum Ach. On earth, Hunker Creek, no. 167, spores 
17-23 x 10-12/*, broad-ellipsoid, muriform and decolorate, 
Leptogium (Ach.) Fr., Nyl. 
L. ( Mallotium ) saturninum (Dicks.) Nyl. var. tomentosum Hoffm. On 
rocks, Bonanza Creek, no. 163, infertile, 
Placodium (DC.) Naeg. & Hepp. 
P, {Euplacodium) elegans (Link) DC. On mosses, Bonanza Creek, no. 
79, fertile. 
P. ( Callopisma ) cerinum (Hedw.) Naeg. & Hepp. var, pyracea Ach. On 
willow bark, West Dawson, no. 80, spores 11-13x6-7/*. 
P. ( Callopisma ) Jungermanniae 'Vahl. On mosses and fragment of 
Peltigera, Hunker Creek, nos. 81 and 17 1, spores 17-20 x 7-10/*. 
P. ( Callopisma ) sinapispermum (Auct. ) Hepp. On mosses, Hunker 
Creek, no. 82, spores 20-21 x 10-12/*. 
Lecanora (Ach.) Tuck. 
L. {Eu lecanora) subfusca (L.) Ach. var. hypnorum Schaer. On mosses, 
Bonanza Creek, nos. 133 and 134, spores 11-15 x8-io/*. 
L. subfusca var. coilocarpa Ach. On bark of trees, Hunker Creek, no. 
143 . 
L. ( Eulecanora ) atra (Huds.) Ach. On rocks and trunks of trees. 
Hunker Creek, nos. 139 and 142, spores of no. 142, 10-17 x 4-9/*. ; those of no. 
139 much smaller, 10-12 x 4-5 /*. 
L. ( Eulecanora ) varia (Ehrh ) Nyl. Tuckerman’s a. On various trees, 
Hunker Creek, no. 139a, spores 10-12 x 5/*. 
L. (. Haematomma ) ventosa (L.) Ach. On rocks, “the Dome,” no. 139, 
spores 33 x 2/*, aeicular and pluriseptate. 
L. ( Ochrolechia ) pallescens (L.) Schaer. On wood, Bonanza Creek, no. 
144, spores 77-83 x 40-48/*, broad-ellipsoid. 
L. ( Ochrolechia ) tartarea (L.) Ach. On mosses, Hunker Creek, no. 137, 
spores 60-63 x 27-37/*, me CaCl-f- ; on rocks, “the Dome,” no. 88, infertile. 
Rinodina (Mass.) Tuck. 
R. (Eurinodina) turfacea (Wahl.) Nyl. On mosses, Hunker Creek, no. 
135, spores 40-45 x 12-17/*, variously shaped, even showing a tendency toward 
muriform conditions. 
