116 A. D. READ 



ovina pseudovina, Grossularia pimtorum, Cedronella mexican'a, 

 and Sorbus dumosa, are also seen here, growing scatteringly. 



HUDSONIAN ZONE 



A small area at the top of Kendrick Mountain, elevation 

 10,000 feet is the only example of this zone on the Tusayan 

 Forest. The tree species are spruce (Picea engelmanni) and 

 cork bark fir (Abies arizonica). A large amount of pipsissewa 

 (Chimaphila umbellata) and some of the Canadian zone species 

 grow here. 



Following is a check list of some of the species growing in 

 this part of the Tusayan Forest. Although it is only a par- 

 tial list it is thought that most of the species growing there are 

 enumerated. 



Most of the shrubby and herbaceous plants were identified 

 at the National Herbarium at Washington, D. C. The nomen- 

 clature of the "Manual of Rocky Mountain Botany" by Coulter 

 and Nelson is used wherever possible for shrubs and herbaceous 

 plants; Sargent's "Manual of the Trees of North America" is 

 followed in naming the trees. 



POLYPODIACEAE 



Pteridium aquilinum var. pubescens Underw. Brake 



PlNACEAE 



Pinus -ponder osa Laws. Yellow pine 



Pinus flexilis James Limber pine 



Pinus edulis Engelm. Pifion 



Picea engelmanni (Parry) Engelm. Englemann spruce 



Abies concolor (Gord.) Parry Balsam, White fir 



Abies arizonica Merriam Cork bark fir 



Pseudotsuga taxifolia (Lam.) Britton Red fir 



Cupressus arizonica Greene Cypress, Yew 



Juniperus pachyphloea Torr. Alligator bark juniper 



Juniperus monosperma (Engelm.) Sarg. One-seed juniper 



Juniperus scopidorum Sarg. Cedar 



Juniperus communis L. Ground hemlock 



Gnetaceae 



Ephredra antisyphilitica S. Wats. Mormon tea 



Gramineae 



Andropogon scoparius Michx. Small feather grass 

 Sorghastrum nutans (L.) Nash 



