72 TWENTY-NINTH REPORT ON THE STATE MUSEUM. 
inimical to living plants than all the others together. All the species 
of the three orders Pucciniei, Ceeomacei and A cidiacei find ‘their 
dwelling place on such plants. They are popularly known by the 
names Rust, Brand, Smut and Cluster cups. Many of them havea 
dual form but usually both forms occur on the same plant. In such 
cases only the second or principal form is given. In Phragmidium 
the spores have a permanent pedicel and two to ten septa according 
to the species. The color of the spores is blackish-brown or black. 
They grow on the stems or leaves. In the earlier condition the 
spores are simple and yellow or orange. These early forms consti- 
tuted the genus Lecythea. 
Phragmidium speciosum Fr ........ Rose stems. 
i waneronntnnt Le. 3... ese Rose leaves. 
bie EMC GTEU 2) oe nemo ta 2% ee Rubus odoratus. 
uF obtusum ] 1A Ape AN AS eA on Potentilla Canadensis. 
Triphragmium clavellosuam Lerk.... Aralia nudicaulis. 
In Puccinia the spores have a permanent pedicel and a single 
transverse septum. ‘They grow in dense sori or masses of a rusty- 
brown, blackish-brown or black color. These masses are usually dot- 
like and are scattered uniformly over the leaves or are collected in 
clusters on more or less discolored spots. The earlier forms of the 
species have the spores simple and were formerly grouped in the 
genus Trichobasis. 
Puceinia puleheHa Ph... ..'.. 2.620% Ribes prostratum. - 
Peranornet Wee...\... esac es Prunus serotina. - 
Anemone nemorosa. - 
PCIIONES POPS. ste eee Thalictrum dioicum. 
; a Cornuti. 
Anemone Virginiana. - 
Slide ASCH! ie siainae =, oe we Penner 
Roane Le aa eli ele ee ate Caltha palustris. - 
PEE CMW Frcs voi aeu= aes Podophyllum peltatum. > 
Dinolaqannet ie: Ogee inne, bo Violet leaves. - 
Lychnidearum Zk...... .... Dianthus leaves. » 
Mariz-Wilsoni Clinton....... Claytonia Caroliniana. - 
Noli-tangeris Cd ............ Impatiens fulva. + 
Le Cal A ee eee ean Polygala pauncifolia. 7 
Waldsteiniz Curt ..... .... Waldsteinia fragarioides. 
Ret een a ye a a essa) ce oe Rubus villosus. 
ene pore | R. occidentalis. © 
SR hey Slit BR: strigosus. 
eurtipes owes 2 5 26 She Saxifraga Pennsylvanica. 
SIE CEE pF eee nt = '8.s)<iereieit\ dian ciate Tiarella cordifolia. 
: Circeea alpina. 
Cem Pers: 5.2 taesk > 1 C. Tetae: 
ballaria: L6.~) os. Phi ee Sanicle stems. 
Pee FUG ES eee Le |e Oe ee ee 
