OCT., lS9!t.] 



ALTIXE ZONE. 



G7 



PLAN'TS OK IU'DSONIAN ZONK — COlltiimccl. 



(2) Sj)ccics rcslricled to /liidnoiiiaii ;oiie — Continued. 



I'entsteuiou ii,l;iber iitiilieusis. 

 Pentstenion newl)erryi. 

 Phyllodoce cnqietrifoiniis. 

 Finns albicanlis. 

 Pott-ntillii Habellifolla. 

 Poteiitilla ])sciulornpestri.s ? 

 Scuti llaria nana. 

 Tsnga ni(>rteusiana. 

 Vaccininni (•,i'8])itosnni. 



11a. 



Epilobiutn priuyleannin. 

 Holodiscus discolor ityiiical form). 

 Junipeins nana. 

 Kalniia glauca uiicro|>l 

 Miinnln.s implexus. 

 Mitt'lla i^entandra 

 Oreobronia tripliylla. 

 Ortliocarpus ])ilosus. 

 Paruassia californica. 



(3) Species eommoti fo llndHou'uin and < (nuidiau zortes. 

 [See p. M.] 



(4) Specien common to Hudnoiiioii ond Alphic zouts. 



Agosi lis inonticola. 

 Antennaria media. 

 Arabis platysperiua. 

 Caiex breweri. 

 C'heirantlms pereuni.s. 

 Cbrysothamnns bloonicri. 

 Cymo])terus terebiuthinus. 

 Erigeron arnieria-foliuin. 

 Eriogouuui polyj)odnni. 

 Eriogonnm pyrola'folinui. 

 Hieracinni albitlornni (alpine form). 

 Hieracium gracile. 

 Hieiacium boriidum. 

 Jiincus parry i. 

 Ligusticiim grayi. 

 Lupiuus 'ornatus.' 



ALPINE ZONE 



Lutkea pectiiiata. 

 Macliicrauthera^ sbasteusis 

 Oreastrum alpiginum. 

 Pentstemou menziesi. 

 Plalox douglasi diHnsa. 

 Polygonnni uewlierryi. 

 Polygonum sliastense. 

 Pulsatilla occldentalis. 

 Sibbaldia prooumbcns. 

 8ilene grayi. 

 Sitanlou cinerenm. 

 Spragnea nmbellata. 

 Stveptautbus orbjoulatns. 

 Veronica tusitki. 

 Viola purpurea. 



The Alpine zone occupies the iiregular belt of pumice and lava 

 between timberline and the upper limit of i)lant growth. On the 

 Wcirmer southwesterly slopes its lower limit may be found at 9,000 to 

 0,800 feet, but on ordinary slopes it is considerably lower. The great 

 majority of its sjjecies stop at or below an altitude of 11,000 feet, but 

 on the relatively warm southwesterly slo]»es Hnlsea nana was found at 

 ll,oOO feet, and two species, Draba hreireri and Polemonliim pulchelliim, 

 as high as 13,000 feet — the extreme limit of plant growth on Shasta. 



MAMMALS OF ALPINK ZONK. 



(1) Sjifcus known io occur in AJpine zone on Sluista. 



Cauis lestes.' 

 Microtus mordax. 

 Ovis canadensis. 

 Peromyscus gambeli. 



PbtMiacomys oropbilus. 

 Tbomomys nu)nticola. 

 Vuljics macr(Mirus.' 



(2) Species restricted io Alpine zone. 

 None. 



' Tbe coyote and fox range up into the Alpine zone, but do not breed, above the 



Hndsoniau and possibly not above the ('anadian. 



