1911] Blewitt,— Introduced Plants of Connecticut 89 
one locality. Agropyron tenerum Vasey has been collected but is 
now probably extinct. A. caninum (L.) Beauv. is rare. The squirrel- 
tail grass, Hordeum jubatum L. grew there in abundance one season. 
Elymus brachystachys Scribn. & Ball, a grass of the far west has been 
collected, also another species not yet determined. 
Of the Polygonaceae there are three representatives. Rumex altis- 
simus Wood, a handsome species with pale green glaucous leaves, is 
well established. R. mexicanus Meisn. is rare. Polygonum ramosissi- 
mum Michx. has been collected. Chenopodium urbicum is well estab- 
lished, also Atriplex patula L., var. hastata (L.) Gray and Salsola Kali 
L., var. tenuifolia G. F. W. Mey. Amaranthus blitoides Wats. carpets 
the ground in several places. Acnida tuberculata Moq. and the strik- 
ingl y handsome plant, Oxybaphus nyctagineus (Michx.) Sweet, were col- 
lected for several seasons. The Cruciferae are well represented. Alliaria 
officinalis Andrz. and Berteroa incana (L.) DC. have been collected. 
Thlapsi arvense L., Brassica juncea (L.) Cosson, Lepidium apetalum 
Willd., Sisymbrium Loesellii L., S. Sophia L., and Camelina micro- 
carpa Andrz. are all established and more or less abundant. Poten- 
tilla recta L. and P. intermedia L. are in a flourishing condition. The 
two sweet clovers, Melilotus alba Desr. and M. officinalis (L.) Lam., 
are abundant and spreading, also Vicia Cracca L. A small station of 
Convolvulus arvensis L. is in a flourishing condition. Cynoglossum 
officinale L., with its peculiar-colored blossoms, has been collected 
each year. Lithospermum arvense L. has been collected in an adjoin- 
ing field. Verbena stricta Vent., a tall, erect, and very handsome plant 
of the western plains, is well established and thriving. One plant 
of Siderites montana L., a native of Southern Europe, was found the 
season of 1908. Solanum carolinense L., a vicious and persistent 
weed, is spreading. Galiwm verum L. has been collected several sea- 
sons but is not in a flourishing condition. 
The composite family is well represented by a number of species and 
most of them are thriving. Lactuca Scariola L. and its closely related 
var. integrata Gren. & Godr. are spreading. The tall, rank, western 
weed, Iva xanthifolia Nutt., is well established. A few plants of Xan- 
thium spinosum L. were found for several seasons. Grindelia squarrosa 
(Pursh) Dunal, a gummy plant, native of the western plains, has 
been collected several seasons. Helianthus Maximiliani Schrad. and 
H. petiolaris Nutt., two more western species, have been collected. 
H. Maximiliani persists. The Matricarias are well represented, 
