748 The American Naturalist. [August, 
regretted, especially as this might have been done very easily. This 
monograph will be of much service to students of these widely dis- 
tributed plants. 
- Notes.—Two valuable papers on embryology have recently ap- 
peared in the Botanical Gazette, viz. “ The embryo-sac of Aster nove- 
anglie”’ by Charles J. Chamberlain and “ Contributions to the embryo- 
logy of the Ranunculacez,” by David M. Mottier. Part III of Murray’s 
“ Phycological Memoirs” appeared in April (London, Dulau & Co.). 
It contains papers on Pachytheca, calcareous pebbles formed by Algz, 
Diatoms (list), Macrocystis and Postelsia, and a Comparison of the 
Arctic and Antarctic Marine Floras. Baillon’s Histoire des Plantes 
has nearly completed its thirteenth volume, the last part being a 
monograph of the Palmaceze. The illustrations are, as usual, of high 
excellence, and the general treatment is quite like thatin preceding parts. 
Botanists will not be likely, however, to accept his substitution of 
Rotang L., Fl. Zeyl. (1747) for Calamus L., Sp. Pl. (1753). We 
notice, also, that the author doubts the validity of Sereno Watson’s 
genus Erythea, suggesting its identity with either Brahea or Copernica. 
From a notice of the London Catalogue of British Plants, in the June 
number of the Journal of Botany, we learn with pleasure that our 
usually conservative brethren across the water have adopted some of 
the “ radical ” views of certain American botanists. The editor of the 
the Journal says “ certain necessary alterations in nomenclature have 
been made” and then gives without a word of dissent the following: 
Nuphar Sm., now Nymphea L. 
Nymphæa L., now Castalia Salisb. 
Corydalis Ventenat, Choix des Plantes, xix (1803), now Neckera 
Scopoli, Introd. 313 (1777). 
Capsella Medic. Pflanzeng. i. 85 (1792), now Bursa Weber, in Wigg. 
Prim. Fl. Holsat. 47 (1780). 
Lepigonum Wahlberg, Fl. Gothob. 45 (1820), now Buda Adanson, 
Fam. des Plantes, ii. 507 (1763). 
Mertensia Roth, Catalect. i. 34 (1797), now Pneumaria Hill, Veg. 
Syst. vii. 40 (1764). 
Calystegia Brown, Prodr. 483 (1810), now Volvulus Medic, in Sta- 
atsw. Vorles. Churpf. Phys. Oek. Ges. i. 202 (1791). 
Leersia Solander, ex Swartz, Prod. Ind. Oce. 21 (1788), Homalocen- 
chrus Mieg, ex Haller, Stirp. Helv. ii. 201 (1768). 
