76 EUROPEAN ALIENS IN AMERICA. 
P. decipiens is not endemic to Europe; it occurs in India! 
om "Siberia, 
- prelongus is also not endemic; it occurs in N. America}, 
bit perhaps in the Himalayas. 
26. P. rutilus Wolfg., is not synonymous with Friesit Rup., 
except through the many wrongly-named specimens 
n Nyman’s Suppl. Consp. Kurop. p. 288, we are told that 
P. Grisebachit Heuff. is “ status P. pusilli incrustus, ex Smk.” 
Dr. ae Se it a full species ; allies is right ? 
trichoides Cham s in 
80. . gract acilis Fries (1828) is antedated by P. _— — 
(1827) ; this im P. cs 209 Kiblman in Fl. Fenn. Phan.! and 
Wolfgang's ame ware Journ. Bot. 1890, at 299). 
Ps _fuscieuate Wolfs. | belongs to Jiliformis (‘* marinus L.”’), 
not to pectinatus. 
. P. flabellatus Bab. was described in Mm. Brit. Bot. ed. 8, 
shir. not * “se 7, 1874.” It is not endemic, but occurs in Canada !, 
a ar ee 1, &e. 
‘Pp, es L.” is not endemic; it occurs in Asia!, 
Atrio! America !, and Australia ! 
OG. P. ondiesrvi Tansch, ! has nothing to do with P. densus, 
but is a variety ses subspecies) of trichvides Chain. 
ensus ean scarcely be said to be ‘cosmop.”; out of 
Europe it occurs rarely in Africa!, Asia Minor!, India! ; not in 
America—an error! 
Dr. Richter omits P. Upsaliensis Tis., P. vaginatus Turez., P. a 
catus Fryer, P. Griffithit Ar. Benn. and P. St urrockit Ar. Benn 
and he purposely i ignores the so- Sediba: ‘‘ species ” of pages 
EUROPEAN ALIENS IN AMERICA. 
By T. D. A. Cockeret.. 
Tue present Saeed of notes is merely a summary of my 
observations on the spread of some species of European plants in 
North America, faving my residence there from 1887 to 1890. 
tunities for rapier the degree of influx of exotic weeds in that 
State; while both on my outward and homeward journeys, I made 
notes on the flora observable along the route. 
doubt, every year makes notable chunges in the spread of such 
plants, and the time will come when historical aitdibe will be 
penne 
Ranunculus acris L. Not noticed yet in - west. Olear 
(NY) Elmira (N.Y.). Waverley. Owego. Binghampton. 
Nastui tium officinale R. Br. Purposely spleen in Colorado, 
