68 LKAFLETS. 



North side of Mount Hood, Oregon, 1898, H. D. Langille, in 

 U. S. Herb. Allied Uj C. Nevadensis, which is frequent alsn in 

 Oregon; but iliis Aiouut Hood shrub, with its obvious pubes- 

 cence and peculinr iong peduncles, with short inflorescences, is 

 quite distiucl;. 



C. MACKOTHYXiSUS. C. thyrsiflorus, var. macrothyrsus, 'i'orr. 

 Wilkes Exp. 5263 ; C. iniegerrimus of recent writers and colk-i'- 

 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-peduueled, 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 (Jenus Pneumonanthe. 



The group of perennial herbs well represented in America 

 by what we call the Closed Gentians and their immediate kin- 

 dred, and having its Old World counterpart in what Linneeus 

 denominated Geniiana 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. lutea, 

 has yellow corollas deeply cleft and almost rotate, most like 

 those of a, Swerita or -d Prasera -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 



