194 
the Red Rock River near Spring Hill, Valley of the Teton; 8. racemosus 
var. paueiflorus , Belt Mountains. More prolific on tlie former host? 
sometimes covering both surfaces of the leaves, causing them to fall be¬ 
fore their season. 
Microsph^era grossulari^e, Lev. Hosts: Ribes rotundifoliim , 
Sand Coulee; R. florid-urn, Sand Coulee and Helena; R. nigrum (cult, 
black currant), Saud Coulee. The perithecia and contents usually ma¬ 
ture in late autumn, when the leaves begin to fall. 
Microsphjera Ravenellii, Berk. Hosts: Astragalus adsurgens , 
Sand Coulee, Helena, Deer Lodge, Spring Hill; Vicia Americana , var. 
linearis , Sand Coulee, Helena, Deer Lodge, Willis, Belt Mountains, and 
the Valley of the Teton. Very abundant on the latter host, stunting 
its growth and preventing the production of flowers. 
It will be evident from the following table that there are still many 
common and good-sized families whose members are attacked by Ery- 
siphecv that are not represented in our list. Active workers may expect 
a rich harvest in Montana for several years to come. The work is in 
its infancy here, and the only active students are Mr. Kelsey and my¬ 
self. We want more in the field. I have made several flying trips to 
points all over the Territory, only getting together a dozen species on 
ninety odd different hosts. What we need is more local collectors who 
can do thorough work in their own vicinities. This want will doubtless 
be supplied as our new State grows older. 
Orders represented among host 
Ranunculace®. 
Geraniace®. 
Sapindace®. 
Leguminos®. 
Rosaceae.:... 
Saxifragace®. 
Onagrace®.. 
Cornace®. 
Caprifoliace®. 
Rubiace®. 
Composit®. 
Polemoniace®. 
Hydropliyllace®. 
Borraginace®. 
Verbenace®. 
Labial®. 
El®agnaee®. 
Urticace®. 
Cupulifer®. 
Salieine®.. 
Typliace®. 
Gramine®. 
Total in twenty-two orders 
plants. 
Number Number 
of genera of species 
in in 
the order.l the order. 
•1 
1 
1 
4 
2 
2 
1 
1 
1 
1 
11 
1 
1 
2 
1 
1 
1 
1 
1 
2 
1 
6 
44 
4 
3 
1 
10 
2 
5 
1 
1 
2 
1 
35 
2 
1 
2 
1 
1 
1 
1 
1 
10 
1 
7 
93 
rysiplie® represented by G genera and 13 species. 
