164 
rigines.” We may well be thankful that it has not established 
itself on our Western grazing lands. 
At the water-works we found a number of plants growing on 
the rocky banks which we had not observed elsewhere. Among 
them were a Cuphea, a Scutellaria, and two new species of Ver- 
bena, of which one bore pretty scorpioid racemes of purple flow- 
ers with yellow eyes. I also collected specimens of the rank 
green Valeriana polystachya, Smith, of both sexes; a climbing 
Mikania ; a Smilax, and a delicate little plant related to the 
Primulacee, with yellow flowers, on slender peduncles, having 
bearded filaments like Axagad/is. 
I must not forget to mention a pretty blue-and-white Sa/via 
which I found growing under bushes; Acena Eupatoria, a rosa- 
ceous plant with the habit of Agrimony; and a Liliaceous plant 
bearing umbels of white fragrant flowers (Nothoscordum Sellowt- 
anum, Kunth.), which I afterwards found in Chile. In the Banda 
‘Oriental it is called Jagrimas del Virgen, or ‘‘ the Virgin’s tears.” 
In conclusion I will mention a few more plants growing near 
Montevideo which are also found in the United States. Some 
‘of them are South American species which have established 
themselves with us; others are North American species which 
have probably been introduced into South America, and it may 
be that some are indigenous to both floras. 
The most abundant are the Erigeron Canadense, now of al- 
most world-wide distribution ; Specularia perfoliata, Alp. DC. ; 
Aster subulatus, Mich. ; Solidago odora, Ait.; Bidens bipinnata, 
L.; Galinsoga parvifiora, Car.; Gnaphalium purpureum, L.; 
Gila glomerifiora, Benth. ; Quamoclit coccinea, Mcench.; Evol- 
vulus sericeus, Swtz.; Physalis viscosa, L.; Linaria Canadensis, 
Spr. ; Verbena venosa, Gill.; Euphorbia hypericifolia, L.; Sene- 
biera pinnatifida, DC.; Polygonum acre, Kunth. ; Mollugo ver- 
tictllata, L., several grasses and two ferns, ‘oodsta obtusa, 
Hook., and Polypodium incanum, Swtz. 
The presence of two species of Bauhinia, which have been 
-described by Bentham, may be interesting to the student of the 
fossil botany of the United States, as this genus has been found 
in the Amboy Clays of New Jersey. 
U. S. S. * Mohican,’’ Panama Bay, April 23, 1887. 
