286 
nidus-avis, the latter a new species, inducing a “ ——_ nest ” dis- 
tortion in Funiperus Virginiana. 
flost Index of the Fungi of the United States.—A Provisional. 
—Part III. W. G. Farlow and A. B. Seymour. (Pamph. 
pp. 83. Cambridge, June, 1891). 
This third and final part of the index contains the last. install- 
ment of the plant hosts, with an addendum of some thirty pages, 
a list of animal hosts, and an index covering the entire work. 
Insects and the Forms and Character of Flowers—On the Rela- 
tion Between. Thos. Meehan. (Bot. Gaz xvi. 176, 177). 
Later Life-History of the Flowering Dogwood—Notes on the. 
M. A. Read. (Pop. Sci. News. xxv. 47. 48, illustrated). 
An article, designed for popular reading, upon evolution in 
the genus Cornus. C. florida and C. Canadensis are figured. 
Letters received from Mr. Graham Kerr, Naturalist to the Pil- 
comayo Expedition. (Trans. and Proc. Bot. Soc. Edin., Dec. 
1890, 33-40, and March, 1891, 80-87). 
Contain many notes on the vegetation of the region. 
_ Life-History of a Stipitate Fresh Water Alga. George Mas- 
see. (Journ. Linn. Soc. xxvii. 457-462; one plate). 
An account of the development of Dictyospherium Ehren- 
bergianum, Neg., a plant common to Europe and America. 
List of Plants collected by Dr. Edward Palmer in 1890, in West- 
ern Mexico and Arizona, at t. Alamos, tt. Arizona. J. N. 
Rose. (Cont. U. S. Nat. Herb. i., No. iv. Pamp. 8vo. pp. 
127, ten plates. Washington, D.C:, June 30th, 1891). 
The following are described and figured as new: Stedlaria 
montana, Diphysa racemosa, Echinopepon cirrhopedunculatus, 
Tithonia fruticosa, Bidens Alamosanum, Hymenatherum anom- 
alum, Perezia montana, Cordia Palmeri, Ipome@a alata and 
Tabebuia Palmert. Others described but not figured are: Sida 
Alamosana, Watson, ined.; Ayenta paniculata ; A. truncata ; 
Bunchosta Sonorensis; Rhus Palmeri; Hosackia Alamosana ; 
_ Brongniartia Palmeri ; Willardia [n. gen.| Mexicana ; Piscidia 
mollis, called “palo blanco” from its white appearance; Mz- 
mosa (Leptostachye) Palmeri ; Lysiloma Watsoni ; L. Acapul- 
censis, Benth. var. brevispicata; Pithecolobium Mexicanum ; 
| Schizocarpum Palmeri ; Vernenia (?) Falmeri ; Evigeon Alamo- 
a 
