Oct. 15, 1914 Heart-Rot of Oaks and Poplars 75 



On Que reus gambe lit. — Sandia Mountains (Manzano National Forest), Hedgcock, in 

 1906 (F. P. 126,230); in 1908 (F. P. 270, 551-553, 558); near Pinos Altos (Gila National 

 Forest), Hedgcock, in 1909 (F. P. 811, 812); in Alamo National Forest, L. L. Janes, 

 1909 (F. P. 1 142); MogoUon Mountains, Bear Creek Canyon, and Trout Creek (Gila 

 National Forest), Hedgcock and Long, in 1911 (F. P. 9837); Cloudcroft, Long, in 

 1911 (F. P. 12015); Pecos, Long, in 1912 (F. P. 12426). 



On Quercus oblongifolia. — Near Mogollon, Hedgcock, in 1911. 

 Arizona: 



On Quercus arizonica. — ChiricahuaMountains, H. D. BmRALL, in 1908; nearSedona 

 (Coconino National Forest), Hedgcock, in 1910: Santa Catalina Mountains, Hedg- 

 cock, in igii. 



On Quercus chrysolepis. — Sedona, Hedgcock, in igio. 



On Quercus emoryii. — Chiricahua Moxmtains, Bl-rrall, in 1908: Groom Creek and 

 CrownKing(PrescottNational Forest), Hedgcock, in 1910; Santa Catalina Mountains, 

 Hedgcock, in 1911. 



On Quercus gambelii. — Groom Creek (F. P. 4557), Crown Ki ng (F. P. 4877), Sedona 

 (F. P. 4941), and near Flagstaff, Hedgcock, in 1910; Santa Catalina Mountains, Hedg- 

 cock and Long, in 191 1 (P. P. 9801). 



On Quercus hypoleuca. — Near Pinos Altos, Hedgcock, in 1909. 



On Quercus oblongifolia. — Groom Creek and Crown King (F. P. 4876) and near 

 Sedona, Hedgcock, in 1911; Santa Catalina Moimtaias, Hedgcock, in 1911. 



On Quercus toumeyi. — Santa Catalina Mountains, Hedgcock, in 1911. 

 California: 



On Quercus californica. — Scott River Valley (Klamath National Forest), Hedgcock, 

 in 1909 (F. P. 1886); near Mirror Lake (Yosemite Park), Clarks (Plumas National 

 Forest), North Fork, and O'Neals (Sierra National Forest), Meinecke, Ln 1910; near 

 El Portal and Yosemite (Yosemite Park), Hedgcock and Meinecke, in 1910 (F. P. 

 4794); near Kennett, Hedgcock and Meinecke, in 1911 (F. P. 9649). 



On Quercus chrysolepis. — El Portal and Yosemite, Hedgcock and Meinecke, in 1910; 

 North Fork (Sierra National Forest), Meinecke, in 1910. 



On Quercus garryana. — Scotts River and Mount Marble (Klamath National Forest), 

 Hedgcock, in 1910 (F. P. 1847). 



On Quercus lobata. — Stanford University, C. F. Baker, in 1902 (Herb. Univ. of Wis- 

 consin); near Chico, Hedgcock, in 1909; Dobe and Italian Bar (Sierra National 

 Forest), Meinecke, in 1910. 



On Quercus wislizeni. — El Portal, Yosemite, and near Raymond, Hedgcock, in 

 1910; near Kennett, Hedgcock, in 1911. 



On Quercus sp. — Crane Valley (Sierra National Forest), and El Portal, Meinecke, in 

 1910. 

 Oregon; 



On Quercus garryana. — Near Mount Hood (Oregon National Forest) and Rogue River 

 Valley, Siskyou National Forest), Hedgcock, in 1909 (F. P. 1717); near Medford, 

 Hedgcock, in 1911 (F. P. 9611). 



On Quercus californica. — Rogue River Valley, Hedgcock, in 1909. 



From the foregoing data the following trees are attacked by the disease 

 caused by Polyporus dryophilus: Quercus alba, 0. arizonica, Q. californica, 

 Q. chrysolepis, Q. coccinea, Q. digitata, Q. emoryii, Q. gambelii, Q. garryana, 

 Q. hypoleuca, O. imbricaria, Q. ilex, Q. lobata, Q. lyrata, Q. viacrocarpa, 

 Q. marilandica, Q. michauxii, Q. minor, Q. nigra, 0. oblongifolia, Q. palus- 

 tris, 0. phellos, 0. prinoides, 0. prinus, Q. robur, 0. texana, 0. lelutina, 

 Q. virginiana, and Q. wislizeni; Populus grandidentata, P. tremula, and 

 P. iremuloides ; Beiula ( ?) sp. , and Pinus ( ?) sp. 

 60300°— 14 6 



