Discusses Peridermium coloradense , Peri- 

 dermium conorum - picea, and Trametes pini on 

 Engelmann spruce. 



HEDGCOCK, GEORGE GRANT. 1913. Notes on 

 western Uredinea which attack forest trees . 



II. Phytopathology 3: 15-17. 



Discusses Peridermium coloradense on 

 Engelmann spruce. 



HEDGCOCK, GEORGE GRANT. 1913. Notes on 

 some diseases of trees in our national forests. 



III . Phytopathology 3 : 111-114. 



Reports on winter injury to Engelmann 

 spruce. 



HEDGCOCK, GEORGE G. 1914. Notes on some 

 diseases of trees in our national forests. IV. 

 Phytopathology 4: 181-188. 



Discusses Herpotrichia nigra , Fomes pinicola, 

 and Fomes roseus on Engelmann spruce . 



HEDGCOCK , GEORGE G. 1932. Notes on the 

 distribution of some fungi associated with 

 diseases of conifers. Plant Dis. Rptr. 16: 

 28-42. 



HEDGCOCK, GEORGE G. (See Rhoads et al. 

 1918) 



HEDGCOCK, G. G. (See Scheffer and Hedgcock. 

 1955) 



HEIM, A. L. (See Betts and Heim. 1914) 



HEIT, C. E. 1949. Physiology of germination. 

 N. Y. State Agr. Expt. Sta. Rpt., pp. 42-45. 



Discusses germination of Engelmann spruce. 



HEIT, C. E. , and E. J. ELIASON. 1940. 

 Coniferous tree seed testing and factors af- 

 fecting germination and seed quality. N. Y. 

 State Agr. Expt. Sta. Tech. Bui. 255, 45 pp. 



One lot of Engelmann spruce was tested. 



HE LMERS, AUSTIN E. 1946. Fifth -year re- 

 sults of direct seeding with western redcedar 

 and Engelmann spruce. U.S. Forest Serv., 

 North. Rocky Mountain Forest and Range 

 Expt. Sta. Res. Note 24, 4 pp. 



HELMERS, AUSTIN E. (See Schopmeyer and 

 Helmers. 1947) 



HENRY, AUGUSTINE. (See Elwes and Henry. 

 1906-1913. 



HENRY, L. K. 1936. Mycorrhizae from the 

 Uinta Basin. Carnegie Museum Annals 

 (Pittsburgh) 25: 63-72. 



HINDS, THOMAS E. (See Davidson and Hinds, 

 1958; and Hawksworth and Hinds 1959, i960) 



HODGE, W. C. (See Brown and Hodge, 1948; 

 and Finch, Hodge, and Metcalf, 1950) 



HODGE, W. C. , C. W. BROWN, and T. L. 

 FINCH. 1949. Forest resources of southern 

 Montana. U.S. Forest Serv., North. Rocky 

 Mountain Forest and Range Expt. Sta. Paper 

 20, 19 pp. 



HODSON, ELMER REED. 1908. A new charac- 

 teristic of Engelmann spruce. Bot. Gaz. 46: 

 386. 



Resin vesicles in bark. 



HODSON, E. R. , and J. H. FOSTER. 1910. 

 Engelmann spruce in the Rocky Mountains. 

 U.S. Dept. Agr., Forest Serv. Cir. 170, 23 pp. 



Includes quantitative community data and in- 

 formation on growth, reproduction, and silvical 

 characteristics of Engelmann spruce; discusses 

 effect of fire on Engelmann spruce. 



HOFF, C. C. 1957. A comparison of soil, cli- 

 mate, and biota of conifer and aspen commu- 

 nities in the central Rocky Mountains. Amer. 

 Midi. Nat. 58: 115-140. 



Reports on communities in Wyoming and 

 Colorado . 



HOFMANN, J. V. 1917. Natural reproduction 

 from seed stored in the forest floor. Jour. 

 Agr. Res. 11: 1-26. 



Reports on reproduction following a bum; 

 Engelmann spruce accounted for 1% of the re- 

 production . 



HOFMANN, J. V. 1922. Engelmann spruce. 

 Timberman 23: 9. 



HOLMES, G. D. , and G. BUSZEWICZ. 1958. 

 The storage of seed of temperate forest tree 

 species. Forestry Abs. 19:313-322,455-476. 



Reviews storage of tree seed. 



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