38 THE JOURNAL OF BOTANY 
Russula mitis and R. luteotacta stand on precisely the same 
footing ; it is optional to quote MS. authorities in herbaria, and, 
as Mr. Rea’s reference to luteotacta shows, not always desirable. 
Tn each case the name may be cited as of “ Rea in ee 
As regards Hiatula Wynnee, the specific name as it stands in 
the Catalogue is the proper spelling according to the laws laid 
down by the Vienna Congress. 
W. E. Sr. Joun Brooks. 
BOOK-NOTES, NEWS, ¢e. 
Mr. Harold Wager gave a lantern d 
Behaviour of the Epidermal Cells of Leaves.” He stated that 
be taken into 
cells with long focus 
