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388 BERRY: MESOZOIC FLORA OF ATLANTIC COASTAL PLAIN 
at Arthurs Bluff, Lamar County; Woodbine, Cooke County; and 
Denison, Grayson County. 
The largest of these collections is the one from Arthurs Bluff, 
which was made in 1894 by Dr. T. Wayland Vaughan. The 
plants are preserved in a fragmentary state in a yellowish sandy 
clay or loose sandstone. Dr. Knowlton identified the following 
species from this locality: 
Aralia Wellingtoniana Vaughanii Knowlton  _Phyllites rhomboideus Lesq. 
Benzoin venustum (Lesq.) Knowlton Platanus primaeva Lesq. 
Diospyros primaeva Heer Sapindus aes Heer? : 
Ficus glascoeana Lesq.? Salix deleta Lesq 
Liriodendron pinnatifidum Lesq.? Viburnum robustum Lesq. 
Myrica longa (Heer) Heer 
The collection from Woodbine in Cooke County was made by 
G. H. Ragsdale and is reported as containing: 
Andromeda Pfafiana Heer Diospyros primaeva Heer 
Cinnamomum ellipsoideum Sap. & Mar. Eugenia primaeva Lesq. 
Cinnamomum sp.? Phyllites aristolochiaeformis Lesq.? 
The collection ae Denison, Grayson County, was made by 
T. V. Munson from two outcrops in that town, Munson Hill, 
from which Dr. Knowlton is unable to identify any forms speci- 
fically, and Rhamey Hill, from which the following are recorded: 
Cinnamomum Heerii Lesq. Magnolia Boulayana Lesa. 
Diospyros Steenstrupi Heer Magnolia speciosa Heer 
Inga cretacea Lesq. Populus sp.? 1 
Laurus proteaefolia Lesq. - Salix sp.? 
Liquidambar integrifolium Lesq. 
Confining any comments to the collection studied by th 
we may note that out of a total of 27 species, three species all 
one variety of which are new, seventeen are forms either described 
or recorded from the Dakota group. It is greatly to be regretted 
that no very precise stratigraphic significance can be attached to 
any particular units of the Dakota group flora, since the Dakota 
group materials have been recognized over a very wide area ina 
more or less unscientific way and no careful stratigraphic-palee 
botanic work has ever been carried out. 
Since the Woodbine formation of northeastern Texas gu 
doubtedly represents deposits laid down during a part of vans 
group time, they should naturally contain this large, Dak ay 
groupelement. If we judge by the range of the Woodbine spe 
e writer 
