233 
For some time past the writer has had access to the Arthur herbarium, 
and at the suggestion of Dr. J. C. Arthur, made a list of the hetercecious 
species of Puccinia having their teliospores on grasses, whose complete life 
histories are known. ‘The teliospores of the short-cycled forms appearing 
on the «cial hosts of these rusts were compared with the teliospores of the 
long-cycled forms with the intention of compiling such a list as Fischer 
published. The following combinations were found to appear as good Cor- 
relations : 
LIST OF CORRELATIONS. 
Rust, TELIAL Host, ArctaL Host, 
Ree Be Festucca 
Puccinia Crandallii Pammel & Hume 1 : 
Poa Symphoricar pos 
1 I 
\Puccinia Symphoricar pi Hark. Symphoricar pos 
(/PUCCOO SUTOMUTPIO INOS 5505084500000 JURUMOWOS segs aoe Anemone 
\Puccinia Anemones-virginiana Schw... Anemone 
Aster 
Bigelovia 
: 4 Koeleria | Chrysopsis 
"TP KEC UIT ISEHDGA INA N 6 ab A ded nb abee se. NOTYZODSIS 5... ache ‘ Chrysothamnus 
| Stipa Erigeron 
3 Grindelia 
se Bigelovia Gutierrezva 
Chrysopsis Lygodesmia 
Puccinia Grindeliw Peck............. Chrysothamnus Nothocalais 
Grindelia Senecio 
Gutierrezia Solidago 
Be Castilleja 
Puccinia Andropogonis Schw... Andropogon...... | Dasystoma 
4. _Penstemon 
FAUGCUN UMS CHILE TU Ceer> Url leernes ese Dasystoma 
5 Puccinia pustulata (Curt.) Arth...... Andropogon...... Comandra 
eal PICU TONG ONNOILA NCE Mae Cat errr ers Comandra 
(Arabis 
gee . Keleria | Parrya 
Puccinia monoica (Peck) Arth........ IESE TEN oy) ence eee 
6 ( ) | Trisetum | Schenocrambe 
; mee se : | Smelowskya 
Puccinia Holboellii (Horn.) Rostr.... Arabis ss y 
7 | Puccinia Agropyrt Ell. & Ev... ... AGRO DYGON see Anemone 
*\Puccinia DeBaryana Thuem....... Anemone 
ry. ane Rheum 
JPANCCUDHT TUIDAUT INTE 5.85 o'55000 oo O8 < Phragimitise sane: { Rhe f 
8 | Rumen 
IG iiites Opa ING (ss \al5 Seago nooeede Rumex 
9 Puccima rhamni Wettst.............. AW EN One eee LUROITns 
“*\Puccinia Mesneriana Thuem.......... Rhamnus 
The last two combinations in this list are the ones noted by Dietel. 
