68 LEAFLETS. 
North side of Mount Hood, Oregon, 1898, H. D. Langille, in 
U. S. Herb. Allied to C. Mevadensis, which is frequent also in 
Oregon ; but this Mount Hood shrub, with its obvious pubes- 
cence and peculiar long peduncles, with short inflorences, is 
quite distinct. 
C. macrorayrsus. C. thyrsiflorus, Var. macrothyrsus, Torr. 
Wilkes Exp. 263; C. integerrimus of recent writers and collec- 
tors, not Hook. & Arn. Growing parts silvery-silky, the mature 
foliage thin, pubescent on both faces: leaves ovate to oval and 
oblong-oval, acute or obtusish, commonly subcordate, notably 
veiny not emphatically triple-veined, the largest 3 inches long, 
usually entire but those on vigorous shoots lightly serrate, the 
scattered pubescence marking both faces, but veins beneath vil- 
lous; thyrsus 6 to 8 inches long, short-peduncled, the peduncle 
with but few and scarcely reduced leaves. 
The original of this excellent species is from the Umpqua 
Valley, in Oregon, but very good recent specimens have been 
distributed by Mr. Heller, Mr. H. E. Brown and Dr. Edward - 
Palmer, from the foot-hills of Butte Co., Calif., about Chico. 
The Genus Pneumonanthe. 
The group of perennial herbs will represented in America 
by what we call the Closed Gentians and their immediate kin- 
dred, and having its Old World counterpart in what Linneus 
denominated Gentiana Pneumonanthe—perhaps including his G. 
Cruciata and asclepiada, perhaps not—was first published as a 
genus by Valerius Cordus in the year 1561. His name for it 
originates by simply turning into Greek the name of Lungflower, 
by which the plant was known'to the common people, who held 
a decoction of its herbage to be efficacious in diseases of the 
lungs. 
Considering that the original and typical Gentian, G. /utea 
has yellow corollas deeply cleft and almost rotate, most like 
those of a Swertia or a Frasera—to which genera it is really 
more related than to any of our blue or purple so-called gen- 
tians—it is not remarkable that Cordus’ proposition that the 
blue-flowered gentians having deep-tubular corollas are of 
