Vol. 
5] 
BULLETIN 
OF 
THE 
No. 2 
TORREY BOTANICAL CLUB 
FEBRUARY, 1924 
Internal sori of Puccinia Sorghi 
Mase. A. RICE 
(WITH FOUR TEXT FIGURES) 
During a series of cytological studies made upon Puccinia 
Sorghi on corn I found several cases of internal sori both of uredo 
and of teleutospores. 
Such phenomena have already been 
reported from a variety of sources, and for the whole series of 
rust spores: spermatia, aecidiospores, uredospores, and teleuto- 
spores. The cases which I have found reported are listed below. 
OCCURRENCE OF INTERNAL RustT Sori 
S 
Date| Author Parasite Senne Host Location 
1885|Smith, W. |Puccinia graminis | III1 |Aveua sp. |Between gluten 
G. (19) Pers : and starch layers 
seed. 
1886|Smith, W: |Puccinia graminis I |Berberis In cotyledons of 
G. (20) ers. vulgaris seeds within bar- 
berry fruit. 
1896/Eriksson, J.|Puccinia ghumarum| II |Cereal 
9) & (Schmidt) E.& H.} III |Grains In pericarp 
Henning,E. 
1898|Bolley,H. |Puccinia graminis-| 11  |Triticumsp. |Beneath bran laye 
S.& Prit-| tritict E. & H. III and about embryo- 
chard, F. of seed. ; 
J. (4) 
1899|Klebahn H.|Puccinia cari- I |Carum Carvi\In parenchyma of 
(12) } stem within fibro- 
vascular bundles. 
[The BuLLETIN for January (51: I-36) was issued Feb. 8, 1924.] 
37 
