Part 7, 1922] AECIDIACEAE 
T eliospore-wall less than 1.5 w thick at sides. 
eliospores not or slightly constricted at septum. 108. MM, 
_ Teliospores strongly constricted at septum. 109. M. 
Host belonging to family Bignoniaceae. 110. 
Host belonging to family Acanthaceae. 111. M4. 
Host. belonging to family Rubiaceae. : 
Teliospores clavate. 112. M. 
Teliospores ellipsoid or obovate. 113. M. 
Host belonging to family Caprifoliaceae. 
eliospores rough. 114. M7 
Teliospores smooth. i 
Teliospore-wall dark cinnamon-brown. 115. M. 
Teliospore-wall golden-brown. 116. M. 
Host belonging to family Adoxaceae. 117. M. 
Host belonging to family Campanulaceae. 118. M. 
Host belonging to family Lobeliaceae. 119. M. 
Host belonging to family Ambrosiaceae. 120. M. 
Host belonging to family Carduaceae. 
Of the tribe Vernonieae. 
Teliospores finely verrucose. 
Teliospores not or slightly constricted. 121. M. 
Teliospores strongly constricted. 122, M. 
Teliospores smooth. 123. M. 
Of the tribe Eupatorieae. 
Teliospore-wall thickened above. 
Pedicel fragile, colorless. 124. M. 
Pedicel persistent, concolorous. 125. M. 
Teliospore-wall uniform, very thin. 126. M. 
Of the tribe Astereae. 
Telia long covered by epidermis; stroma present. 127. M. 
Telia early naked; stroma wanting. 
Teliospores usually narrowed below; pedicel short. 128. M. 
Teliospores usually rounded below; pedicel long. 
Teliospores ellipsoid or obovate. 129. M. 
Teliospores cylindric or fusiform. 130. M. 
Of the tribe Heliantheae. 
Teliospore-wall roughened. 
Teliospore-wall uniformly thin, 1-2 pu. 
Wall coarsely verrucose. 131. M. 
Wall finely verrucose-migose. 132. M. 
Teliospore-wall thick, 2-2.5 u, thicker above. 133. M. 
Teliospore-wall smooth. 
Teliospores averaging more than 50 p long. 
Teliospores oblong, 45—70 yu long. 
Teliospore-wall thin above, 3-4 pz. 134. M 
Teliospore-wall thick above, 6-12 « 135. M 
Teliospores clavate, 48-58 yu long. 136. M. 
Teliospores averaging less than 50 » long. : 
Teliospores 10-16 » broad; in temperate regions. 137, M. 
Teliospores 14-22 » broad; in sub-tropical regions. 138. M. 
Of the tribe Helenieae. . 
Teliospores usually narrowed below; wall cinnamon-brown, 
pedicel short. 139. M. 
Teliospores usually rounded below; wall chestnut-brown, 
pedicel long. 129, M4. 
Of the tribe Anthemideae. 140. M. 
Of the tribe Senecioneae. 
Teliospores ellipsoid; pedicel deciduous. 
Teliospores narrow, 14-18 uw; wall thin, 1 p. 141. M. 
Teliospores broad, 18-26 w; wall thicker 1.5-2.5 yu. 142. M. 
Teliospores obovate, oblong or clavate; pedicel Persistent. 
Telia brown, becoming cinereous by germination. 
Teliospores very pale cinnamon-brown or colorless. 143. M. 
Teliospores cinnamon- or chestnut-brown. 
In sub-tropical regions. 144. M. 
In temperate regions. 145. M. 
Telia blackish. ae 129. M. 
Host belonging to family Cichoriaceae. 
Patel aisha So 146. M. 
‘eliospores smooth. 
Sori evenly distributed over leaf-surface. 147. M. 
Sori in groups. . 
Sori chocolate-brown or blackish. M 
Teliospores narrowed at both ends. 148, M. 
Teliospores obtuse or rounded at both ends. 129. M. 
Sori cinnamon-brown, becoming cinereous. 149. M. 
albulescens. 
Wulfeniae. 
depallens. 
Elytrariae. 
rubefaciens. 
lateritia. 
Linkii. 
Sym phoricar pi. 
A pocyni. 
Adoxae. 
Campanulae. 
Lobeliae. 
Xanthit. 
rotundata. 
discreta. 
paupercula. 
tolimensis. 
praemorsa. 
Spegazzinii. 
Virgaureae. 
Asteris. 
Grindeliae. 
Marianae. 
Noiopterae. 
ferox. 
absicca. 
. Rudbeckiae. 
. ordinata. 
semota. 
Silphii. 
Melampodii. 
Flaveriae. 
Grindeliae. 
Millefolii. 
conglomerata. 
expansa. 
Schistocarphae. 
Emiliae. 
recedens. 
Grindeliae. 
Suksdor fi. 
Fraseri. 
columbiensis. 
Grindeliae. 
maculosa. 
523 
