140 PALEOBOTANY [BoT. Absts., Vol. IX, 



della Molluginis v. H. ; and Botryosphaeria anceps v. H. he transfers provisionally to Wall- 

 rothiella. He questions whether the new genus Epiphyma established by Theissen for the 

 fungus last mentioned is sufficiently distinct from Wallrothiella and states that in any event 

 it is not one of the Pseudosphaeriaceae. Pilgeriella peris porioides P. Henn., though superfi- 

 cial in its growth, he considers a typical member of the Pseudosphaeriaceae. — R. M. Holman. 



BACTERIA 



8S7. Jennison, Harry Milliken. BaciUus atrosepticus van Hall the cause of the black- 

 leg disease of Irish potatoes. [Abstract.] Phytopathology 11: 104. 1921. — A comparative 

 study of subcultures from Bacillus atrosepticus van Hall, B. phytophthorus Appel, B. soloni- 

 saperus Harrison, B. melanogenus Pethybridge and Murphy, and of the potato blackleg 

 organism isolated from diseased potatoes in various parts of the United States, show that they 

 are all the same organism. Because of priority Bacillus atrosepticus van Hall is retained as 

 the proper name for the organism. — B. B. Higgins. 



PALEOBOTANY AND EVOLUTIONARY HISTORY 



Edward W. Berry, Editor 



(See also in this issue Entries 668, 769, 1100) 



888. Berry, Edward W. A palm nut from the Miocene of the Canal Zone. Proc. U. S. 

 Nation. Mus. 59:21-22. Fig. 3. 1921. — The author describes the nuts of /rmrh^es Fowg/iam, 

 a new species, from the Miocene Gatun formation of the Panama Canal Zone. — E. W. Berry. 



889. Berry, Edward W. Tertiary fossil plants from Costa Rica. Proc. U. S. Nation. 

 Mus. 59: 169-185. PI. 22-27. 1921. — In addition to Heliconia sp., Hieronymia lehnianni, 

 Buettneria cinnamomifolia, and Nectandra areolata, the author describes the following new 

 species from the Miocene of Costa Rica: Piperites cordatus, P. quinqueco status, Ficus tal- 

 amancana, Anona costaricana, Inga sheroliensis, Goeppertia tertia^ia, Nectandra woodringi, 

 and Phyllites costaricensis. — E. W. Berry. 



890. Berry, Edward W. [Rev. of: Arber, E. A. N. Devonian floras. 100 p., 47 fig. 

 University Press: Cambridge, 1921 (see Bot. Absts. 8, Entry 2086).] Amer. Jour. Sci. 1: 

 514-515. 1921. 



891. Sahni, B. Petrified plant remains from the Queensland Mesozoic and Tertiary 

 formations. Queensland Geol. Surv. Publ. 2'"'7. 4^ P-, 5 pi., 10 fig. 1020. — This paper gives 

 the results of a study of large collections of petrified woods from the Triassic, Jurassic, and 

 Tertiary of Queensland. The 2 petrified fern stems described by Kidston and Gwynnb 

 Vaitghan as Osmundites gibbiana and 0. dunlopi from the Jurassic of Otago, New Zealand, 

 ai'e recorded from the Jurass'c Walloon series of Queensland. The following new species of 

 coniferophyte woods are described: Cedroxylon brisbanense from the Triassic Ipswich series; 

 Cupressinoxylon walkomi. C. dunstani, and Mesembrioxylon sewardi from the Jurassic Walloon 

 series; and M. fusiforme and M. fluviale from the Tertiary. The genus Mesembrioxylon is 

 a recent proposal of Seward for woods from the Jurassic to the Tertiary which resemble Podo- 

 carpus and Phyllocladus, but of uncertain botanical affinity. Two different species of dicoty- 

 ledonous woods are described from the Tertiary, Pataloxylon scalariform and P. porosum; 

 the genus is new, and no hint as to its botanical affinity is given. — E. W. Berry. 



892. Wieland, G. R Monocarpy and pseudomonocarpy in the cycadeoids. Amer. Jour. 

 Bot. 8 : 218-230. PI. 4,fig.l. 1921 . — The author discusses, with illustrations, the monocarpic 

 habit or the production of fruit once in a normal lifetime. This habit is confined at present 

 to angiosperms. He suggests that certain of the Cretaceous cycadeoids were also monocarpic, 

 since specimens have been found in which great numbers of cones, all apparently of the same 

 age, are borne over the whole trunk, indicating that the plant had entered its single reproduc- 



