NORTH AMERICAN FLORA 
On Oleaceae. 
Form indefinite, often covering half of the leaf. 
On Grossulariaceae. 
On Malvaceae. 
Spores usually less than 3 w broad, more than 1 p. 
Occurring on both leaves and fruit. 
On Fabaceae. 
On Staphyleaceae. 
Occurring on leaves only. 
Spots small, less than 1 cm. in diameter. 
Usually deciduous, leaving holes in the leaves. 
Spots with center only deciduous; on Amygdalaceae. 
Spots wholly deciduous. 
Spots medium-sized, 1-3 mm. in diameter; on 
Amygdalaceae. 
Spots very small; on Caprifoliaceae. 
Usually persistent. 
On Salicaceae. 
On Populus alba, 
On other species of Populus. 
On Fagaceae. 
On Quercus. 
On Castanea. 
On other hosts. 
Tropical species. 
On Julianiaceae. 
On Meliaceae. 
On Anacardiaceae. 
On Araliaceae. 
Temperate or subtropical species. 
On vine, Anacardiaceae. 
On shrubs. 
Subtropical, on Caesalpiniaceae. 
Temperate species. 
On Grossulariaceae. 
On Rosaceae. 
On Carduaceae. 
On trees. 
Subtropical species. 
On Euphorbiaceae. 
On Ebenaceae. 
Temperate species. 
On Lauraceae. 
On Aceraceae. 
On Tiliaceae. 
On Ericaceae. 
Spots large, 1 cm. or more in diameter. 
Affecting trees. 
On Fagaceae. 
Spots covering entire leaf. 
Spots restricted. 
On Quercus nigra. 
On Quercus virginiana. 
On other hosts. 
Spots vith concentric rings. 
On Rosaceae. 
On Malaceae. 
On Thymeleaceae. 
Spots without concentric rings. 
Sporophores very long; on Malaceae. 
Sporophores short. 
Spores with two oil-drops; on Artocarpaceae. 
Spores without conspicuous oil-drops. 
On Junglandaceae. 
On Salicaceae. 
On Magnoliaceae. 
On Lauraceae. 
On Meliaceae. 
On Bixaceae. 
On Myrtaceae. 
On Vacciniaceae. 
On Oleaceae. 
Affecting shrubs or vines. 
Tropical, in Porto Rico. 
On Ulmaceae. 
On Mimosaceae. 
Temperate or subtropical. 
On Aquifoliaceae. 
[VoLUME 6 
161. P. Chionanthi. 
162. P. canescens. 
163. P. Syriaca. 
164. P. divergens. 
165. P Staphyleae. 
166. P. Persicae. 
167. P. circumscissa. 
168. P. punctata. 
169. P. Alcides. 
170. P. intermixta. 
171. P. Quercus-prini. 
172. P. Castaneae. 
173. P. Amphipterygii. 
174, P. Guareae. 
175. P. Mortoni. 
176. P. araliana. 
177. P. rhoicola. 
178. P. Parkinsoniae. 
179. P. Grossulariae. 
180. F. variabilis. 
181. P. Baccharidis. 
182. P. Stillingiae. 
183. P. biformis. 
184. P. Sassafras. 
185. P. minima. 
186. P. Tiliae. 
187. P. fimbriatea. 
188. P. agrifolia. 
189. P. ludoviciana. 
190. P. virens. 
191. P. Heteromeles. 
192. P. sonata. 
193. P. Dircae. 
194. P. innumerabilis. 
195. P. moricola. 
196. P. Caryae. 
197. P. apicalis. 
198. P. Magnoliae. 
199. P. micropuncta. 
200. P. Meliae. 
201. P. bixina. 
202. P. extensa. 
203. P. Oxydendri. 
204, P. fraxinicola. 
205. P. momisiana. 
206. P. Pithecolobii. 
