REPORT OF THE STATE BOTANIST I9O4 



2Q 



leaf lobes more sharp pointed, in having fewer styles and nutlets 

 and in its globose mostly drooping and uniformly red fruit. Its 

 styles and nutlets are generally 3. Its flowers open about May 20 

 and its fruit is ripe about the middle of October. 



Of the 35 species of Crataegus here recorded, specimens of 33 

 were collected in and near Rochester. In order to indicate more 

 clearly the distinguishing features of the Rochester species, some of 

 which resemble each other very closely, the following synoptic 

 tables of the sections and species have been prepared. The table of 

 the sections is intended to include only the Rochester species. A 

 few species found in and about Rochester but not recorded in the 

 preceding pages, they having been previously reported, have been 

 included in the table of species. They are Crataegus crus- 

 galli, C. punctata, C. pringlei, C. holmesiana, 

 C. matura, C. macracantha, C. succulenta and 



C. tomentosa. 



Synopsis of the sections 



Nutlets with the ventral faces excavated Tomentosae 



Nutlets with the ventral faces not excavated 1 



1 Leaves gradually narrowed to a short petiole 2 



1 Leaves not having this character 3 



2 Upper surface of the leaves shining Crus-galli 



2 Upper surface of the leaves not shining Punctatae 



3 Fruit large, more than 6 lines long 4 



3 Fruit medium or small, 6 lines long or less 5 



4 Flower clusters hairy, ripe fruit more or less hairy 



except inC. spissiflora Molles 



4 Flower clusters hairy or glabrous, ripe fruit glabrous 



except in C. acclivis Lobulatae 



5 Fruit distinctly pruinose before ripening Pruinosae 



5 Fruit not distinctly pruinose before ripening 6 



6 Leaves thin, glabrous except when young Tenuifoliae 



6 Leaves becoming thick or subcoriaceous with age ....... 7 



7 Fruit falling while yet hard Intricatae 



7 Fruit becoming soft before falling. . . .' Coccineae 



Synopsis of the species 



CRUS-GALLI 



Stamens 10 C. crus-galli 



Stamens 10-20 C. persimilis 



PUNCTATAE 



Stamens 20 C. punctata 



