EUCALYPTUS TREES. 379 
pire of vegetation. It exceeds 100 feet in height, 
and is likely destined to grace any shady moist grove 
free from frost in this and other countries, as it seems 
less tender than most palms. The demand for seeds 
has already been enormous. 
Ptychosperma Cunninghami, Wendland. — East 
Australia, as far south as Illawarra; thus one of the 
most southern of all palms. This also is a very high 
species, destined to take here a prominent position 
in decorative plantations. Several species occur in 
Fiji and other islands of the Pacific Ocean, and 
again others might*be obtained from India, but they 
are probably not so hardy as ours. Though, strictly 
speaking, of no industrial value, these palms are im- 
portant for horticultural trade, and are objects emi- 
nently fitted for experiments in acclimation. 
Ptychosperma elegans, Blume. (P. Seaforthia, 
Miq.; Seaforthia elegans, R. Br.)—Litoral forests of 
tropical Australia. Also a lofty magnificent Feather- 
Palm. Its leaflets are erose. It may prove hardy. 
Pyenanthemum incanum, Michaux.—North Amer- 
ica. A perennial herb, in odor resembling both pen- 
nyroyal and spearmint. It likes to grow on rocky 
woodland, and on such it might be easily naturalized. 
Pyenanthemum montanum, Michaux.—The Moun- 
tain Mint of North America. A perennial herb of 
pleasant, aromatic, mint-like taste. These two par- 
ticular species have been chosen from several North 
American kinds, to demonstrate that we may add by 
their introduction to the variety of our oderous gar- 
den-herbs. They may also be ore with advan- 
tage to distillation. 
Pyrularia edulis, Meissner. 2s Nepant, = pam Sik- 
