REPORT OF THE STATE BOTANIST I905 21 



It is broadly rounded or almost truncate at the base and slightly 

 narrowed toward the apex. The plants bear fruit abundantly 

 when only 4 or 6 feet tall, but they sometimes become 12 to 16 

 feet tall. The)^ grow on rather Hght but rocky soil. 



Crataegus pentandra Sarg. 

 The five stamened thorn, in its typical form, is said to have five 

 stamens and to be a tree. Our forms are mostly shrubs and the 

 stamens vary from 5 to 10 in flowers on the same shrub. 



Crataegus polita Sarg. 

 The polished thorn has been found in only one locality in our ter- 

 ritory. It there grows in poor rocky soil. 



Crataegus rhombifolia Sarg. 

 The rhombic leaved thorn belongs to the thin leaved section of 

 the group Tomentosae. It is, with us, a shrub of moderate size and 

 has flowers with 10 stamens and pink anthers. The pedicels are 

 hairy and the calyx tube is also more or less hairy. The species is 

 rather common in the vicinity of Albany. 



Crataegus robbinsiana Sarg. 

 The Robbins thorn sometimes forms a small tree but in the vicinity 

 of Albany it is more often a shrub. The appearance of the leaves 

 suggests a relationship to such species of the group Intricatae as 

 C. intricata and C . f o e t i d a , but the fruit is pruinose 

 and the species is referable to the group Pruinosae. 



Crataegus rubrocamea Sarg. 

 The red fleshed thorn takes its name from the deep red color of 

 the flesh of the fully ripened fruit. It is closely related to C . r u b - 

 i c u n d a but may be distinguished from it by its more globose 

 fruit in fewer fruited clusters and more persistent calyx lobes. It 

 is at present limited to a single locality. 



Crataegus sejuncta Sarg. 

 The separated thorn is allied to the polished thorn, C . polita, 

 from which it is separated by its short, stout, hairy pedicels, more 

 niunerous stamens and rather larger crimson fruit. It is a large 

 shrub. 



Entoloma flavifolium n. sp. 



PLATE S, FIG. 9-15 



Pileus thin but firm, broadly convex or nearly plane, glabrous, 

 hygrophanous, watery white and sometimes slightly striatulate on 



