_ 7 BARBEY 



Irch. in Ami. Mag. Nat. Hist.) Archer, W. in proceedings of the Dublin Microscopical Ciub in Annals and Mag. 

 of Nat. 1 1 istor. 5 ser. 



1881 v. 7: Cosmarium isthmochondrum, Nordst., new to Ireland. p. 338. 



Staurastrum brasiliense, Lundoll. now to Irolaml. p. 310. 



The "puncta" distribnted over tho smooth cell-waUs of Desmidiese arc really pits or depressions, not thickenings 



iir points different in t.int from tho rest of the membrane p. 341342. 



Cosmarium Wittrockii, LundolL, new to [reland (probably new to Britain) p. 343. [g]. 



_ Xwo rotund, granulate Staurastra, one roferred to St. turgescens. De Notaris and another (probably undescri- 



bed superficiallj resembling bu>i essentially distinct, and with distinct zygospores p. 417. 



Problematic Closterium-like "Semieell", its Naturo, or its Place in Nature, undecided. p. 421. 



1881 v. 8: Staurastrum n. sp. [St. cornutum] p. 232. 



Conjugated State of a compressed or twoangled Form of Staurastrum pterosporum, Lundell p. 233 234. 



L883 v. II: Zygospore of a minute Cosmarium for the first time observed i jugated, and named Cosmarium 



Wrightianum p. 208. 



Euastrum Armstrongianum, Arch. a very rare Forin. exhibited p. 213214. 



Cosmarium platyisthinum, n. s. p. 215 216. 



Cosmarium from Deeside, sent by M:r Bisset, approximating C. cymatopleurum Nordst. p. 281282. 



Cosmarium cymatopleurum. Nordst., aml Scottish and Irish Form p. 285. 



Xanthidium concinnum n. sp. Archer, a minute Form of a Cosmarium aspect 285. 



18S3 v. L2: Cosmarium melanosporum, n. sp., vvith Z3 T gospores. p. 124. 



Elongate unicellular Alga seemingly rolated to the so-called Closterium obtusum, Breb. p. 124 5. 



Zygospoie of Cosmarium cucurbita (most probably) shown. p. 127. 



1S84 v. 13: Penium rufopellitum, Boy, from Connemara, exhibited, to show the exfoliation of tlie external reddish 



cortical Coating p. 140. 

 _ Cosmarium acanthophorum, Nordst. exhibited to show that tho form appartains rather U> Xanthidium. p. 142. 

 Spirotsenia acuta, Hilse. not strictly appartaining to the genus though of singular habit. p. 144. 



Staurastrum mesoleium n. s. exhibited p. 145. 



1884 v. 14: Cosmarium striolatum, Nag. ex herb. Eeinsch, but seemingly a distinct species therefrom p. 208. 



Micrasterias brachyptera, Lundell, collected in Westmoreland by Mr Bisset and new to Great-Britain, exhibited 



pag. 210. 

 1S85 v. 16: Zygospore of Cosmarium cucurbita p. 145146. 



Canadian species of Cosmarium notabile, Brcb. p. 147. 



Ardissone, Fransesco. Enumerazione delle Alghe della Marca di Ancona. 32 pp. Fano 1866. - [g]. 



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 1890 p. 281287. 



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de la Soe. des nat. de Moseou. 1884. n 3. Vol. 59, pt. 2. Moscou 1884. p. 1241 II. 

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de la soc. i. dcs nat. cle Moscou 1886 n:o 3 p. 165-184, 

 Askenasy, E. und Forster, F. Beitrage zur badischen Algenflora. Mitteil. d. Badisch. Botan. Vereins, 1892. N:o 101 



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Notes on new species and localities of microseopical organisms. Washington 1854. [g]. Smithson. Contrib. to 



knowledge Vol. 7. (1855 11 pp. -f 1 t. 

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