REPORT OF THE STATE BOTANIST 1905 



19 



• Crataegus eatoniana Sarg. 



The Eaton thorn is yet limited to a single locality and a single 

 small thicket in that locality. It is a peculiar species which by its 

 leaves simulates species of the group Tomentosae, but its nutlets 

 with plane inner faces forbid its reference to that group. It 

 makes a second species for us in the group Punctatae. 



Crataegus edsoni Sarg. 

 The Edson thorn has been found in a single locality in our ter- 

 ritory. There are two clumps of it growing near each other a 

 short distance north of Lansingburg. The species normally has 

 20 stamens in its flowers, but in our form of it the number ranges 

 from 10 to 19. The prevailing number is 10 to 16. The fruit 

 ripens about the first of September and soon falls 



Crataegus flagrans Sarg. 

 The flagrant thorn is a large shrub which is peculiar to a single 

 locality. Its prominent characters are its thin leaves, hairy in- 

 florescence with many flowered clusters and 10 stamens with white 

 anthers. 



Crataegus genialis Sarg. 

 The genial thorn is one of the common species in the vicinity of 

 Albany. It is somewhat variable and not always readily recog- 

 nizable. Its ascending branches and the ovate leaves being scarcely 

 lobed except on vigorous shoots and the fruit commonly longer 

 than broad are some of the most notable characters. 



Crataegus halliana Sarg. 

 The Hall thorn has flowers with 20 stamens and white or pale 

 yellow anthers. Its fruit is rather small but forms large many 

 fruited drooping clusters which are conspicuous when ripe. 



Crataegus helderbergensis Sarg. 

 The Ilelderberg thorn is a small tree with nearly horizontal wide- 

 spreading branches suggestive of the appearance of the dotted 

 fruited thorn, C. punctata. Its broad leaves and hairy 

 inflorescence are distinguishing characters of the species. It has 

 been found at Thompson Lake only, and belongs to the group 

 Crus-galli. 



Crataegus howeana Sarg. 

 The Howe thorn has the characteristic fruit of many species of 

 the group Pruinosae. It is globose or depressed globose and more 

 or less angular. It is rounded at the base and in this respect differs 



