522 The Botanical Gazette. [December, 
It is probable that Coulter passed through Guaymas on his 
way to or from Hermosillo, for two rare plants known only 
from the coastal flora at Guaymas, Acacia willardiana (Pros- 
opis heterophylla) and Perityle leptoglossa, were in Coulter's 
collections, and many other species first brought to light by 
him have since been collected at that point.!1 It is known 
also from localities given by Hemsley in the Biologia Cen- 
trali-Americana for various plants collected by Coulter that 
he visited Jalapa, Guadalajara, Bolafios, Tepic, San Blas, and 
Mazatlan, all of which are well knownas old mining towns or 
as sea-ports. 
had arrived since he began the letter. These two botanists 
evidently worked together, to the great delight of Douglas, 
during the winter of 1831-2 and the following spring, Doug- 
las finally’ sailing from Monterey to the Sandwich Islands and 
Coulter setting out on his trip to Arizona. 15 
As Coulter's journey from Monterey to the mouth of the 
Gila is the one with which the botanists of our own country 
are mainly concerned, it has seemed desirable to record in 
ee Wats. Proc. Amer. Acad. 24: 36-82. 1889. 
ne ni Les: ka ee ae esi s Revue de la famille des Cactées, below. PAS 
bok tee e's Mémoire sur quelques nouvelles espéces de 
**C. C. Parry, Early Botanical Expl f the Pacific Coast 6. (Re- 
arr from the Overland Monthly for Gotoh = 883.) nae 
Bo 
1883. 
J. Hooker, Comp. Bot. Mag. 2: 151-153. 1836. 
