277 
PALAOBOTANICAL PAPERS READ BEFORE SEC. E. 
On Problematic Organisms and the Preservation of Alge as 
Fossils, by Jos. F. James, in which the claim is made that the 
majority of so-called fossil alge or fucoids, “are referable to 
tracks, trails or inorganic causes.”’ 
Principles and Methods of Geologic Correlation by Means of 
Fossil Plants, by Lester F. Ward, in which a strong case was 
made for the importance of palzobotany in assisting to determine 
geological horizons. 
The Plant-Bearing Deposits of the American Trias, by Lester 
F. Ward. (Read by title). 
Index to Recent Literature Relating to American Botany, 
Abnormal Phyllotactic Conditions as Shown by the Leaves or 
Flowers of Certain Plants. Aug. F. Foerste. (Bot. Gaz. 
Xvi. 159-166, pl. xiv). 
This is one of the author’s characteristic painstaking contribu- 
tions. Notes on abnormal phyllotaxy are here given for 
Sanguinaria Canadensis, Trillium sessile, Jeffersonta diphylla, 
Rhamunus lanceolatus, and Fraxinus sp. : 
Alnus maritima. (Gard. and For. iv. 268, 269, f. 47). 
Anatomy of Ipomea versicolor, Meissn.—On Some Points in the. 
D. H. Scott. (Ann. Bot. v. 174-179. pl. xii., xiii). 
Anthracnose of Cotton. Geo. F. Atkinson. (Journ. Mycol. vi. 
173-178, pl. xvii., xviii). 
Illustrated description of a new fungus, Colletotrichum 
Gossypit, South. 
Arbutus Arizonica. (Gard. and For. iv. 317, f. 54). 
Are Plums and Cherries of One Genus? E.U. Greene. (Gard. 
and For. iv. 250). 
A discussion of the generic status of Prunus and Cerasus 
with incidental reference to Pyrus and Malus. 
Aphelandra Blanchetiana. (Bot. Mag. t. 7179). 
Bermuda in May. (Gard. and For. iv. 262, 263). 
Bermuda Juniper—The. (Gard. and For. iv. 289, 290, f. 51, 
52). 
Illustrated description of Funiperus Bermudiana. 
