MONTANA BOTANY NOTES 35 



Fragaria bracteata Heller. Alta, McDonald Lake in the Mission Moun- 

 tains. 



Fragaria platypetala Rydberg-. Bigfork, McDonald Lake in the Mission 

 Mountains. Lake McDonald to St. Mary's Lake. The species of strawberry 

 are in a state of confusion. 



Rubus pedatus Smith. Bigfork. Rost Lake by MacDougal and Miss Nor- 

 ton. Ciiluinbia Falls by "Williams. 



Rubus parviflorus Nutt., R. Nutkanus Moq. Very common from Alta 

 northward. 



Rubus Idaeus var. acutissimus Reg. & Lndl. R. strigosus Mx. This vari- 

 ety has very hispid pedicels, short-petioled leaves, coarsely serrate and wide, 

 fruit nearly double the size of the prevailing western i)lant. Ravalli, Mc- 

 Donald Lake in the Mission Mountains. 



Rubus Idaeus var. gracilipes. Leaves long-petioled; leaflets mostly 

 narrowly ovate, not coarsely serrate; pedicels nearly smooth, sepals barely 

 tailed; fruit rarely over half an inch long; flowers small. Very common 

 from Alta northward, and throughout the west. R. nivalis reported by 

 Wat.s'on from the Bitter Root Valley is almost certainly a depauperate form 

 of this species and not the true R. nivalis. 



Sanguisorba annua Nutt. Common on the Flathead plains, Ravalli, 

 Ronan, Evaro. 



Rosa Nutkana Presl. St. Ignatius Mission, Browning. 



Rosa Nutkana var. MacDougali (Holzinger Bot. Gaz. 21 36 as species). 

 Alta. Mission Creek, common throughout the Flathead region. 



Rosa pisocarpa Gray. Common in open and dry woods from Alta north- 

 ward. 



Prunus Americana Marsh. This has become established at Ravalli and 

 in the Bitter Root valley. 



Prunus emarginata (Dougl.) Walp. Common throughout the region from 

 Mission Creek northward ibut not seen in the Sperry Glacier region though 

 found at Belton and Upper Marias Pass. 



Prunus nnollis (Dougl.) Walp. Sand Point, Idaho. Libby (Bailey). Re- 

 ported from Ravalli by MacDougal and Butler but diligent search fails to 

 reveal it there. This is considered to be a variety of P. emarginata but I 

 have seen no intergrades. 



Prunus demissa (Nutt.)Dietr. I fail to see any ground for Nelson's P. 

 melanocarpa, even though Nuttall describes his as red fruited, for we know 

 that this species has fruit red till dead ripe when it turns black. Common 

 everywhere at low elevations. 



Spiraea Douglasii Hook. Alta, Sand Point, Idaho. Silloway Peak, Mac- 

 Dougal, Elrod Peak (Elrod), Lolo (Watson). 



Spiraea Douglasii var. Menzissii (Hook.) Presl. Libby (Bailey). 



Spirea densiflora Nutt. Bigfork, MacDougal Peak, Sperry Glacier to 

 Gunsight Lake. 



Spiraea corymbosa Raf. ("onimon from Alta northward. 



Physocarpa opulifolia var. pauciflora (T. & G.) Piper. Very common 

 througliout. 



Crataegus Douglasii Lindl., B'ot. Reg. 21 to ISIO (1836). C rivularis 

 Nutt. Douglas's Hawthorne. Fruit red till near maturity. This can always 

 be separated from the other species by the small spines, never branched, 

 and by the narrow and less lobed leaves, and the open and less scraggy 

 habit. It is much infested with a fungus, Roestelia. Very common along 

 creeks and on the lake shores. Fruit more juicy than the red one. The 

 bark is all smooth and gray except on large trunks below, where it flakes up 

 some. It is a slender and opened branched shrub 15-30° high. Fruit blue- 

 black, oval. Common in all localities except on the mountains, also at 

 Whitefish, Rexford and Sand Point, Idaho. Missoula (MacDougal), and 

 Bigfork (Umbach), both as C. brevispina. Middle Temperate life. Belton, 

 Ravalli, Ronan, McDonald Peak. 



