1908] Rich,— City Botanizing 151 
have been the sources from which many of the more conspicuous 
plants herewith mentioned have been doubtless derived. Some of 
them thrive for a few seasons and disappear while many seem to have 
taken up a permanent abiding place here, and only the inevitable course 
of the city's growth will finally destroy them. 
In the accompanying record only those plants, for the most part, 
that are likely to attract the attention of the passer-by or that are of 
especial botanical interest are noted. The many species of the ordi- 
nary weeds and grasses and those that are commonly found elsewhere 
are omitted. 
Perhaps the first flowering plant of the season that will attract notice, 
other than the willows and poplars, is the Petasites vulgaris Desf., 
one of the coltsfoots. It has flourished on a damp gravelly bank for 
at least eleven years, sending up in April and May numerous thick, 
naked flower stalks, succeeded later in the season by enormous leaves 
a foot and a half in diameter. 
In the early part of the summer few plants of especial note are promi- 
nent and it is not until later in the season that the richness of the flora 
is manifested. 
In June I have recorded the following species in flower: 
Amorpha fruticosa L., a shrub five or six feet high; Lonicera Mor- 
rowii Gray, rather frequent; Desmodium Canadense DC.; Ptelea 
trifoliata L., abundant as a small tree; Amsonia Tabernaemontana 
Walt., a bushy, herbaceous plant, about three feet in height, with 
milky juice and bluish flowers; and Coronilla varia L., very abun- 
dant and covering broad areas of gravelly banks with its profusion of 
rose-colored blossoms. 
An Astragalus, growing in one of the lots on Boylston Street, has 
attracted attention during the past two years, and has been collected 
in flower and fruit. It has been jdentified by Prof. M. L. Fernald 
of the Gray Herbarium as Astragalus glycphyllos L. It is a European 
plant and is probably one of the escapes from the neighboring Back 
Bay Fens. 
In June, 1907, I came across a clump of a trailing, raspberry-like 
plant with a profusion of small, pale-red flowers. I watched it from 
week to week until it fruited, to make sure that it belonged to the 
raspberry section of the genus Rubus. I could find no description of 
such a plant in any of the horticultural lists or botanical manuals and it 
was at length identified by Mr. Alfred Rehder of the Arnold Arboretum 
