Russian River Valley! south of Clear Lake! Geysers! Auburn and Forest Hill! San José Valley! Blue Mountains!! (Mr. Dunn) Rocky Mountains!! New Mexico!! 4. _Pinus insignis_. Dougl. (Monterey Pine.) Monterey! Carmelo Valley! This species covers many thousand acres of land near and by Monterey and Carmelo, forming quite an extensive forest along the coast between these two places. Height, sixty to one hundred feet, and one to three feet diameter; outline very irregular, consisting often of only a few rigid spreading branches; foliage dense and of a vivid green color; cones persistent, often from ten to nineteen whorls; bark very thick and rimose. Wood extremely resinous and rather coarse-grained; excellent for street planks, bridges, and floors. At present it is no more in the market as lumber; the good timber has been all cut, and the saw-mill removed. Considering that there is, besides this species, only _Pinus muricata_ growing in that forest, which could not be confounded with the species in question—it is certainly most singular to meet with so many synonyms for it. _Pinus radiata_, Don.; _Pinus Sinclairii_ and _Pinus tuberculata_, provided this last should not prove to be a good species. It is the more astonishing since trees and cones are of great conformity throughout the entire forest. 5. _Pinus tuberculata_, Don. Santa Cruz! Ukiah! Oakland hills! Forest Hill! Eureka!!