250 
Lastarriea, Remy.— Confirmation of the Genus with Character 
extended. C.C. Parry. (Proc. Davenp. Acad. Nat. Sci., v., 
pp--35, 36; reprinted.) 
Chorizanthe Lastarriea, Parry, is L. Chilensis, Remy, and 
two new species from Chili are described. 
Lilium tigridum.—Notes on. Thos. Meehan. (Proc. Phil. Acad. 
Nat. Sci., 1886, pp. 297, 208.) 
Orthotrichia,—A new Genus of Myxomycetes. Harold Wingate. 
(Journ. Mycol. ii., pp. 125, 126; one figure of O. micro- 
cephala, Wingate.) 
Paspali of Le Conte's Monograph.—Notes on. Dr. George Vasey. 
(Proc. Phil. Acad. Nat. Sci., 1886, Pp. 254-290.) 
This monograph was published in 1820 in Vol. g1 of the 
Journal de Physique. Dr. Vasey has critically examined all of 
Major Le Conte’s specimens contained in the Herbarium of the 
Philadelphia Academy, and gives us the results of his studies in 
this valuable paper. His final revision of the genus may be 
found in the September number of this BULLETIN. i 
Pear Blight—History and Biology of. J. C. Arthur. (Proc. 
Phil. Acad. Nat. Sci., 1886, pp. 322-336-++; one plate.) 
This paper is a resume of the investigations conducted by 
Dr. Arthur and others on the disease caused by the Micrococcus 
amylovorus, Burrill. 
Pollen in the Flowers of Indigofera.—On Projection of. Thomas 
Meehan. (Proc. Phil. Acad. Nat. Sci., 1886, pp. 292-294.) 
Polyembryony.—D. P. Penhallow. (Can. Rec. Sci., ii., p. 177-) 
Mr. Penhallow records the frequency of this phenomenon in 
the seeds of the Tangierine orange. Among 38 seeds, only six 
produced single plants, while 19 produced two plants, nine three 
plants, and from four seeds four seedlings each originated. 
Pyrola rotundifolia. (Garden, xxx., Pp. 429; illustrated.) 
Quercus dentata.—Note on. Thomas Meehan. (Proc. Phil. 
Acad. Nat. Sci., 1886, pp 280, 281; three figures.) _ 
Mr. Meehan exhibited to the Philadelphia Academy speci- 
mens of this Japanese oak, with pistillate flowers, which, like those 
of our annual-fruited species, are borne at the ends of the new 
growth, in pairs, on short peduncles, The tree was raised from 
an acorn, and is now about ten years old. In DeCandolle’s Pro- 
