Notes oN H1IppocHAETE 7s 
pinnae, or only a few stunted ones, beyond the feriile 
pinnae. This condition apparently is produced by 
injury caused by strong winds whipping the tender 
young plants against the porch wall; but one year one 
of the fronds on the fern bed had no sterile pinnae above 
the fertile ones and only one stunted one below. 
I planted two royal ferns in the fern bed in August, 
1913, and in each of the three following years one began 
growing about April 21 and the other about April 26. 
Sterile and fertile fronds appear at the same time, some 
sterile fronds coming as late as July 15. The sterile 
parts of the fronds are colored light salmon or light 
purplish cinnamon when unfolding and the fertile por- 
tion is light green, sometimes tinged with yellowish. 
The mature fruiting part of the frond is dark cinnamon- 
brown and the dark green sporangia have ripened about 
May 25 and all have fallen by June 1, the fruiting por- 
tion remaining till late in July. 
Kurztown, Pa. 
(To be continued) 
Notes on Hippochaete! 
OuiveR ATKINS FARWELL 
HIprocHarre LAEVIGATA. 
In a friendly criticism of Standley’s Ferns of Greene 
Co., Mo., Mr. B. F. Bush, in the Amprican FERN 
JouRNAL for October-December, 1916, adopts the name 
Equisetum Kansanum Schaffner for the smooth annual- 
Stemmed species that for many years has passed for 
Equisetum laevigatum Braun, transferring the latter 
hame to the perennial plant that was later described as 
Equisetum hyemale var. intermedium by A. A. Eaton, 
Ftp ee te 
"In Mem. N. Y, Bot. Gard. 6: 461 ff., Mr. Farwell gives his reasons for 
ro the scouring-rushes from the true horse-tails as a separate 
nus under the name of Flippochaete.—Ed. 
