BOOK-Ts^OTES, NEWS, ETC. 311 



142). The eastern American plant has alvva^^s been assumed to 

 Le the same as the European P. vulgare; wliile the western or 

 Pacific Coast ])lant has accpiired quite a number of specific or varietal 

 synonyms. But, as Mr. FernakVs research proves, it is the Pacific 

 phmt that is inseparable from the variable P. vnlrjare of Europe, *' in 

 view of the similarly stout and firm, sweetish rhizome with peltatel}^ 

 attached scales of similarly dense structure, the identical fronds with 

 often MQYs broad pinna? (up to 1*8 cm. and rarely to 4 cm.) bearing 

 medium sori, the clearly intergrading venation, and the predilection for 

 living on dead trees, stumps, and mossy logs." It is distributed over 

 " Europe and adjacent Asia and North Africa ; Atlantic Islands ; 

 Alaska to Lower California, Arizona, and New Mexico " ; and its 

 synon^nny includes P. californiciim Kaulf., P. iniermeclium Hook. & 

 Arn., P. faJcainm Kellogg, P. Glycyrrlnza D. C. Eaton, P. lies- 

 perium Maxon, P. occidentaJe (Hook.) Maxon, which more or less 

 accord with its main varieties. The eastern pbnt, on the olher hand, 

 varies but little; it is i\\& F. virginiaimm of Linnseus (1753); it 

 grows on shaded rocks and banks, seldom on trees, and it ranges from 

 Newfoundland and Manitoba southwards to the mountains of northern 

 Georgia and Alabama, Illinois, and eastern Missouri. It is charac- 

 terised by having a rhizome rather soft and spongy, and not sweet, 

 the scales of v/hich are darkened on the back, loosely cellular, thick- 

 walled, and at base cordate ; the frond about half as long, one-third 

 as wide, with pinna? more regularly alternate, and narrow, and with 

 sori nearly marginal. — A. Gr. 



No. LXITT of Cnnfrihufions from the Gray Herharium contains 

 Mr. M. L. Fernald's account of the Gray Herbarium Expedition to 

 Nova Scotia in 1920, which has been a})peai-ing seriall}^ in Rhodora 

 during 1921-2. The first part is a bi-iglitly written and interesting 

 "Journal of the Expedition," during which "17, COO sheets of care- 

 fully pre])ared specimens representing 3,000 numbers " were collected, 

 and is followed by an account of the noteworthy vascular plants 

 obtained: "although the detailed results cannot yet be stated, it is 

 now safe to sa}^ that of the indigenous vascular flora of siliceous South- 

 western Nova Scotia, approximately 150 out of the 1800 known 

 s))ecies are either isolated from the more continuous coastal ])lain flora of 

 the South or are endemic derivative i from it." The second part con- 

 tains an account of the moi-e noteworthy plants collected, with 

 critical notes, often of considerable length, rm species of Pofamogefon, 

 JPanicum. Carex, Juncus^ Polygonum^ Atrijplex, and Buhtts. We 

 note that Moss is followed in his adoption of A. glalriusciila Edmon- 

 ston in place of A. Bahingtonii Woods, and its distribution in 

 America is given. Two new species — Lopliiola septcntrionalis and 

 Antennaria aj^j^endiculata — and several new varieties are described; 

 a hybrid between Broi^era longifoJia and B. rotuudifolia, given 

 as new, has, we think, been previouslj^ published. 



The Transactions of the British Mycological Society, vol. vii, 

 ■part 4 (10s. 6f/. n.), contains an account of last year's Spring Foray 

 at Haslemere, with a list of the fungi and lichens found thei-e ; a 

 couple of papers by IVofessor A. H. K. Buller — one, "the Basidial 



