31 
In this contribution the botanical features in the vicinity of 
Vermillion Lake, Minnesota, are described. Caltha natans is 
noted from the neighborhood of Tower. 
Notes Sur le genre Trentepohlia, Martius. M. Paul Hariot. 
(Jour de Bot. Paris, 1 Nov. 1889,—16 Mai. 1890). 
The following species occur in the United States: TZrentepohtia 
aurea (L.), Martius; 7rentepohlia abcetina (Flotow), Hansgirg ; 
Trentepohlia effusa, (Krempelhiiber,) Hariot (7. setzfera, Farlow); 
Trentepohlia odorata (\Wiggers), Wittrock ; Trentepohlia rigidula 
Mill. Arg.) Hariot. (7. cortulosa, Willdeman), might occur 
in the Southern United States. 
Otacanthus, Lindl. und Irhe Verhdéltnis zu Tetraplacus, Radlk. 
—WDie Gattung. P. Taubert. (Engler’s Bot. Jahrb. xii. Bei- 
blatt nr. 28, 11-16). 
Pachystima Canbyi, A. Gray. H. Zabel. (Gartenflora, xxxviii. 
138, 139). 
This rare shrub of the Southern Alleghanies is in cultivation 
at the Garden at Miinden, Germany ; it is said to endure the 
winter well, but to grow very slowly. 
Pinus ponderosa. (Gard. Chron. viii. 559, 558, fig. Ifo, III, 
Lig, 118). 
Prairie Flowers of late Autumn. Byron D. Halsted. (Pop. Sci. 
Monthly, xxxviii. 229-236). 
Prickly Lettuce.—An Introduced Weed. Miss F. Detmars. 
(Journ. Columbus Hort. Soc. v. 53, 54, Pl. iv). 
From this article it is evident that Lactuca Scariola is becom- 
ing a troublesome weed in parts of Ohio. 
Promising Wild Fruits—III, A. A. Crozier. (Am. Garden, xi. 
712-714, illustrated). 
_ Consists of notes upon Castanea Americana, C. pumila, 
Prunus serotina, P. Pennsylvanica, P. pumila, Rubus Chame- 
morus, R. leucodermis and Asimina triloba, the latter figured. 
Pyrenomycetes, The North American: A Contribution to Mycologic 
Botany. By J. B. Ellis and B. M. Everhart, with original 
illustrations by F. W. Anderson. Published by Ellis and | 
Everhart, Newfield, New Jersey, 1891. 
