58 Varietöten, etc. — Palaeontologie. — Microscopie. 



lacks these characters, and is, so far as investigated, not different 

 from that of pure O. Lamarckiana. 



The dimorphic mutants constitute a group in which the heredi- 

 tary phenomena are evidently independent of the externally visible 

 characters of the special members of the group. but must be assu- 

 med to have the same intrinsic causes in the different cases. 



Jongmans. 



Berry, E. W., Contributions to the Mesozoic flora ofthe 

 Atlantic coastal piain. XI. Tennessee. (Bull. Torrey Bot. 

 Club. XLIII. p. 283-304. PI. 16. 1916.) 



Fossil plants are ver}'- rare in the cretaceous of Tennessee. 

 This scarcity is due in a measure to lack of exploration, as is in- 

 dicated by the results of a Single season's work by Mr. B. Wade, 

 who obtained plants from the Riplej' formation (Mc Nairy sand 

 member) and from the Eutaw formation (Coffee sand member). 

 The flora is remarkable in not showing any traces of ferns or 

 gymnosperms. The two floras are much contrasted. The Coffee 

 sand flora as at present known consists of fourteen named species 

 and an unidentilied Cupressinoxyloti. None of these are new. It has 

 onh' one species common with the Mc Nairy sand flora and is 

 characterized by a considerable number of forms that come up 

 from older horizons. The Mc Nairy sand flora consists of eleven 

 species, five of which are new and peculiar to this horizon. 



The following plants have been identified. Those occurring in 

 the Coffee sand flora are marked with „C", those in the Mc Nairy 

 flora with ,, M". Descriptions, and remarks on S5''nonymy and distri- 

 bution are added in almost every case. 



Phragmites. Prattii Berr}'' (C); Sabalites species (M); Myrica rip- 

 leyensis sp. nov. (M) resembles closely some of the leaves of the 

 existing Comptonia peregrina (L.) Coulter; Salix eutawensis Berry 

 (C.; DryopJiyUum gracile Debey (M); Ficus crassipes Heer (C); Ficus 

 Kraüsiana Heer fC); Ficus ovalifolia Berry (C); Dewalquea Smithi 

 Berry :Ci; Bauhinia ripleyensis sp. nov. (M), differs from all the 

 american species in its pointed, outwardly directed iobes; Maniho- 

 tites georgiana Berry (C, M); Cissites crispii^ Velen. (M); StercuUa 

 Snowii tennesseensis var. nov. (M); Pterospermites carolinensis Berry 

 (C); Laurophyllum elegans Hollick (C); Ctntiamomum heerii Lesq. 

 (C); Cinnnmoinum species (M); Malapoenna horrellensis Berry (M); 

 Myrcia havanensis sp. nov. (M. and Eutaw Formation of Alabama); 

 Eiigenia {':) nnceps. sp. nov. (M); Atidromeda novae-caesareae Hollick 

 (C): A. Wardiana Lesquereux (C); Diospyros primaeva Heer (C); 

 Hnlymenites major Lesquereux (C), frequently considered as fucoids. 



Jongmans. 



Mottier, D. M. and W. J. G. Land. Chloroform as a paraf- 

 fin solvent in the imbedding process. (The Botanical Ga- 

 zette. LXI. p. 251—253. 1916.) 



These two short notes, one by Mottier, the other by Land, 

 contain the pro and contra of Chloroform as a parafiin solvent. Mot- 

 tier's opinion is that it should be used in stead of xylol and he 

 describes the methods used by him. Land states that Chloroform 

 was abandoned because in transferring from alcohol to Chloroform 

 «^ome plasmolysis results. Land prefers xylol. Jongmans. 



