66 
Journal of Mycology 
]Vol. 11 
the inhibition of maturer tissues in the leaf. So far as this culture 
can be taken as evidence, it shows that a true secondary generation 
of the aecidium probably does not occur in P. Podophylli. 
Summary. 
The following is a complete list of successful cultures made 
during the season of 1904. It is divided into the two series: spe¬ 
cies previously reported by the writer or other investigators, and 
species now reported for the first time. 
A. Species previously reported. 
1. Melampsora Medusae Thuem.— Teleutospores from 
Populus deltoides Marsh, and P. tremuloides Michx. sown on 
Larix decidua Mill., and from P. deltoides Marsh, sown on L. 
laricina (Du R.) Koch. 
2. Phragmidium speciosum Fr. —Teleutospores from Rosa 
Arkansana Port, sown on R. Arkansana Port., R. humilis Marsh., 
R. Carolina L., and R. nitida Willd. 
3. Puccinia Helianthi Schw.— Teleutospores from LLeli- 
anthus mollis Lam. sown on H. annuus L. and H. mollis Lam. 
with abundant infection, and on PL. hirsutus Raf., H. occidentalis 
Ridd., PL. strumosus L., and PL. tomentosus Michx. with slight 
infection; from PL. grosse-serratus Mart, sown on LL. annuus L., 
and H. grosse-serratus Mart, with abundant infection, and on H. 
tomentosus Michx. with slight infection; and from H. laetidorus 
Pers. sown on PL. annuus L., H. laetidorus Pers., and PL. scaber- 
rimus Ell. with abundant infection, and on PL. divaricatus L., 
H. Kellermani Britton, PL. mollis Lam., LL. occidentalis Ridd., and 
PL. tomentosus Michx. with slight infection. 
4. Puccinia subnitens Diet.— Teleutospores from Dis- 
tichlis spicata (L.) Greene were sown on Chenopodium album 
L., Cleome spinosa L., Lepidium apetalum Willd., L. Virginicum 
L., Sophia incisa (Engelm.) Greene, and Erysimum asperum DC. 
5. Puccinia Pammelii (Trel.) Arth.—Teleutospores from 
Panicum virgatum L., sown on Euphorbia corollata L. 
6 . Puccinia verbenicola (E. & K.) Arth. — Teleutospores 
from Sporobolus longifolius (Torr.) Wood sown on Verbena 
urticaefolia L. 
7. Puccinia Windsoriae Schw.— Teleutospores on Tri- 
cuspis seslerioides Torr. sown on Ptelea trifoliata L. 
8. Puccinia Fraxinata (Schw.) Arth.— Teleutospores 
on Spartina cynosuroides Willd. sown on Fraxinus lanceolata 
Borck. 
9. Puccinia Impatientis (Schw.) Arth.—Teleutospores 
on Elymus Virginicus L. sown on Lmpatiens aurea Muhl. 
