LIST OP-PAPKRS, 11)21. 'I'SO 



Mkgaw, W. R. Popular Study of Mosses. An/i. licj). Belfast Nat. F. Club. 



Pt. III., pp. 112-114. 

 MelviIvL, J. Cosmo. Flowering Plants. Carndoc and S.V.F.C. line, of lime 



Facts for 1920, pp. 5-9. 



Hivraciuni ataplvxicaulc, L. Joinn. Bnl. Feb., pp. 48-49. 



Men2,ies, James. Note on Sarosci/p/iu iirotracta (Fr.) Sacc. , in Perthshire. 



Trans. Ptrth. Soc. Nat. Sci. Vol. VII., pt. Ui., p. 149. 

 Millard, W. A. Common Scab of Potatoes. Journ. Mini.'s. Agric. Apr., 



pp. 49-53. 

 ^IiLLEU, W. D. Botanical Section. J'loc. Somerset Arch, and Nat. Hist. Soc 



for 1920, pp. Lxvii-ixxi. 

 MiLSOM, F. E. Liverworts [at Dent]. Nat. Aug., pp. 275-27G. 

 MoFi''AT, C. B. lianunci'lus Aurlcuinu.-< and ChcUdoitnun tnajiis in Co. Wexford. 



Irish Nat. June, p. 72. 



The Mountain Pansy and its time of Flowering, torn. cit. July, p. 80. 



Aca:na Sanijtiisorbtc an Alien Colonist, torn. cit. Aug., pp. 98-99. 



MoNCKTON, Horace W. On the Distribution of Taraxacum erythrospermum . 



Andrz., in the South-East of England [abs.]. TAnn. Sor. Circular, 



No. 386, pp. 1-2. Journ. But. :\Iay, p. 149. Nature. Apr. 21, p. 253. 

 Morey, Frank. General Meetings. Exhibitions, and Excursions. Proc. Isle 



of Wight Nat. Hist. Soc. for 1920. pp. 9-22. 

 MouRis, David 15. Gilbert Wliile as Botanist. Srihornc Mug. Nov., pp. 12.'j- 



126. 

 ^louNCE, Irene. Homotlialli.sni and the Production of Fruit-bodies by Mono- 



sporous ]\lycelia in the Genus Coprinus. Trtin.f. Ilrif. Mi/rol. Soc. 



Dec, pp. 198-217. 

 Murphy, Paul A. Sources of Infection of Potato Tubers with the Blight 



Fungus, Phytophthoru infestaiis. Sri. Proc. Roy. Dublin Soc. Aug., 



pp. 353-308.' 

 Presence of Prrruniul Mycelium in Peroriospora Schlcideni, Unger. 



Nature. Nov. 3, p. 304.' 

 Nicholson, G. W. Cn/ptocephulus hii/uttatus Scop, on Erica tetralix. Ent. 



Mo. .Mag. Feb.', pp. 36-37. 

 Nicholson, William Edward. New or Rare British Hepatics. Journ. Hot. 



Julv, pp. 202-204. 

 Oliver, F. W. Report of Blakenev Point Committee. 1917-1319. Trans. Norf. 



and N. Nat. Sor. Vol. XI., pt. i., pp. 81-96. 

 Olsen, Carsten. Ecology of Urtica diuica. .Journ. Kcol. Sept., pp. 1-18. 

 OsTBNFELD, C. H. Some Experiments on the Origin of new forms in the Genus 



Ilieruciuin, sub-genus urchieracium. Journ. Uenrtics. Sept., pp. 117-122. 

 Parish. H. Algre [at Mobberley, etc.]. Ann. Hep. Manch. Micro. Soc, 1920, 



p. 86. 

 Parker, T., and Long, A. W. Laboratory Note on the control of Trogoderina 



khapra. Buli. Bureau Bio-Tech. Oct., pp. 102-104. 

 Parkin, John. Vitality of Gorse-seed. Nature. June 16, p. 491. 

 Paulson, Robert. Ten Years' Progress in Lichenology in the. British Isles. 



Essex Nat. Apr., pp. 273-287. 



The Sporulation of Gonidia in the thallns of Evernia prunastri Ach. 



Trans. Brit. Mycol. Soc. for 1920, pp. 41-47. 

 Payne, E. Liverpool Botanical Society [Report of excursion]. Lane, and 



C. Nat. Adv., pp. 215-218. 

 Payne, E. F. Protection of the Ainsdale-Freshfield Sand-dunes, torn. cit. 



Jan., p. 142. 

 Pearsall, \V. H. Hydrilla verticUlata Cash. Journ. Bot. Aug., p. 235. 

 — — Aquatic Vegetation of the English Lakes. Journ. Ecol. Dec, pp. 163- 



201 [publ. Feb. 9]. Abs. in Nature. June 16, p. 509. 



Peat Investigation [at Dent]. Nat. Aug.. p. 281. 



Cambridge British Flora. Vol. III. [Notice of]. lie p. Bot. Soc. and 



Exchange Club for 1920, pp. 75-79. 



Hints on Collecting and Mounting Linear-leaved Aquatics. Thirty-seventh 



Ifrp. Wat.wn Bill. Ex. Club, pp. 135-1.36. Reprinted in Journ. Bot. 

 Sept.. pp. 260 261. 



