5i — 
Ramalina pollinaria Ach. L. U. p, 608. 
Lichen pollinarius Ach. in V. ac. H. (Act. Holm.) 1797; p. 263, PI. XI. 
f. 2, me. KHO— 
A plant received from Mr. A. S. Foster, collected at San Juan Island, 
Wash., in 1907, seems to be the var. hurnilis. No other American material 
thus far seen seems referable to this species, although several specimens 
examined, all provided with mealy soredia, have been so marked by our col- 
lectors. Just what form Tuckerman refers to in Syn. p. 27, as occurring on 
trees and rocks, it is difficult to [say, unless it be a plant generally diffused 
throughout the northern U. S. commonly found on rocks, which while 
resembling minor states of R. farinacea has the laciniae of R. dilacerata f. 
pollinariella . Invariably occurring without apothecia, the status of the 
form is doubtful. It is altogether different from the San Juan plant cited, 
which while provided with apothecia, affords no spores. 
Ramalina polymorpha (Ach.) L. U. p. 600. 
Lichen polymorphus Ach in V. ac. H.1797, p.270, PI. XI. f . 3 , me. KHO — 
Tuckerman cites a plant collected by Wright at Bering Strait as refera- 
ble here, but states that it differs from the European forms of the species. 
Assuming that Wright’s plant may be identical with one collected at a later 
date by J. M. Macoun on St. Panl’s Island and issued as Nos. 6 and 8 of 
Macoun’s Canadian Lichens, this difference is to be clearly perceived. Both 
of the Macoun specimens are granulose-sorediate rather than farinose, but 
in all other particulars, even to the extent of being more or less foraminous, 
agreeing with R. dilacerata pollinariella Arn. The plant is better refera- 
ble to that species, for published examples (Zahlbruckner’s Krvp. exsic. No. 
464 and L. B. A. No. 179) show distinctly granulate conditions of the soredia. 
Miss C. E. Cummings in Lichens of Alaska cites R. polymorpha emplecta 
Ach. from St. Paul’s Island, collected by Dr. Bean. But the ultimate 
branchlets of Macoun’s examples from the same locality are not accuminate, 
nor the major segments strongly longitudinally costate-rugose as in that 
variety. Nylander in Freti Behringii cites R. pollinariella , equivalent with 
R. dilacerata pollinariella as herein understood, from this region, and R. 
pusilla geniculata Tuckerm. under which name Tuckerman recognizes the 
same thing is reported from various adjacent localities. R. polymorpha 
seems to be non-existent in the United States. 
Ramalina cuspidata (Ach.) Nyl. Mon. Ram. p. 60. 
R. scopulorum var. cuspidata Ach. L. U. p. 605. 
No. 9. ex. herb. Geological Survey of Canada, so marked, is fistulous, 
and foraminous, hence belongs with the R. pusilla section of Nyl Mon. Ram. 
p. 63. It seems best comparable with R. favanica Nyl. l.c. p. 69, me. KHO — 
Ramalina dilacerata (Hoffm.) Wainio in Medd. Soc. pro. faun, et flor. fennic. 
XIV (1888) p. 14 and 21. 
I^obaria dilacerata Hoffm. Deutsch. FI. (1796) p. 140. me. KHO — 
This is R. minuscula Nyl. Mon. Ram. p. 66, and R. pusilla geniculata 
Tuck. Syn. p. 26, is made a synonum by that writer. Tuckerman’s disposi- 
