WOOTOJST AND STANDLEY FLORA OF NEW MEXICO. 463 



3. CHAMAENERION Adarts. Fireweed. 



Perennial herb with several stems, 80 cm. high or less; leaves mostly lanceolate, 

 nearly entire, short-petioled; flowers in terminal racemes; hypanthium tube little or 

 not at all prolonged; petals slightly irregular, rose purple; stamens in a single series. 

 the filaments dilated below; stigma with 4 divergent lobes; capsules linear-fusiform, 

 many-seeded, the seeds fusiform, comose. 



1. Chamaenerion angustifolium (L.) Scop. Fl. Cam. ed. 2. 1: 271. 1772. 



Epilobium angustifolium L. Sp. PI. 347. 1753. 



Type locality: ''Habitat in Europa boreali." 



Range: British America to North Carolina and California. 



New Mexico: Santa Fe and Las Vegas mountains; Mogollon Mountains; Black 

 Range; 'White and Sacramento mountains. Damp woods and open clearings, in the 

 Transition and Canadian zones. 



A common and rather showy plant in the higher mountains. It receives its com- 

 mon name from the fact that it is one of the first plants to spring up where forests have 

 been swept by fire, persisting in the "burns" until they are reforested. Tnis habit 

 of the plant results largely from the structure of its seeds, which are peculiarly adapted 

 to dispersal by wind, being furnished with tufts of down. 



4. EPILOBIUM L. Willow-herb. 



Herbs. 80 cm. high or less, with alternate or opposite, narrow leaves and small, 

 axillary or racemose flowers; hypanthium tube produced beyond the ovary; sepals 4, 

 deciduous; petals 4, obovate to obcordate; stamens 8; ovary 4-celled; fruit an elon- 

 gated linear-oblong 4-sided 4-celled capsule; seeds small, comose. 



KEY TO THE SPECIES. 



Annual ; stigmas 4-clef t 1 . E. adenocladon. 



Perennials; stigmas entire or merely notched. 



Leaves linear, entire, cinereous 2. E. lineare. 



Leaves lanceolate to ovate, toothed, glabrous or nearly so. 

 Stolon iferous, low, 10 to 30 cm. high, simple or spar- 

 ingly branched 3. E. alpinum. 



Not stoloniferous, tall, 30 to 60 cm. high, much 

 branched . 



Leaves narrowly lanceolate 4. E. fendleri. 



Leaves elliptic or ovate-lanceolate 5. E. nnum. 



1. Epilobium adenocladon (Hausskn.) Rydb. Bull. Torrey Club 33: 1 Hi. 1906. 

 Epilobium paniculatum adenocladon Hausskn. Monogr. Epilob. 247. L884. 

 Type locality: Mountains of Colorado. 



Ram;':: Wyoming and South Dakota to Utah and New .Mexico. 

 New Mexico: North of Chama ( Wooton 2736). Transition Zone. 



2. Epilobium lineare Muhl. Cat. PI. 39. 1813. 

 Epilobium paluttre lineare A. Cray. Man. ed. 2. 130. 1856. 

 Type locality: New England. 



Range: British Columbia and {Jew Brunswick to Delaware, Oklahoma, and New 

 Mexico. 

 New Mexico: White M ountains ( Wooton 661). Transition Zone. 



3. Epilobium alpinum L. Sp. PI. 348. L' 



Type locality: "Habitat in Alpib us Helveticis, Lapponii 



Range: Arctic regions to Oregon, New Mexico, and New Hampshire; also in Europe 



and Asia. 



