46 Muhlenbergia, Volume 5 



There are two introduced European species that are consid- 

 ered as belonging to this section, T. hybridum and T. repcns. 



Trifouum hybridum I.. Sp. PI. 766. 1753. 



This is the alsike clover commonly known in cultivation. 

 It is found from Nova Scotia to Georgia, and west to California, 

 and is considered valuable in marshy places and at high alti- 

 tudes. 



The flowers of alsike and white clover are very similar, but 

 the two plants can be readily distinguished by the difference in 

 habit. The stem of alsike clover is erect and ascending, with 

 the peduncles or flowering stems branching out at intervals, 

 while the stem of white clover (T. repens) is prostrate or stolon- 

 iferous, frequently taking root by this means. The peduncles 

 are extremely long and radical. The white clover or Dutch clo- 

 ver is found in all the northern and northwestern states, where 

 it is valuable for pasture and for lawns. It readily seeds itself 

 by roadsides and other waste places where sufficient moisture 

 can be secured. 



NEW OR NOTEWORTHY PLANTS FROM ARIZONA. 

 By Paul C. Staxdi.ky 



The species described or noted below came to the notice of 

 the writer in collections of plants recently sent to our herbarium 

 by Professor J. J. Thornber and by Mr. J. C. Blumer. The type 

 of the new species is in the herbarium of the New Mexico Ag- 

 ricultural College. 



Caeitilleja Blumeri sp. nov. 



Perennial: stems erect, rather slender, simple below but 

 rather densely branched above, rather finely pilose puberulent 

 throughout: -leaves yellowish-green, finely puberulent, especially 

 beneath, 30mm. long or less, lanceolate, acuminate, with a pair 

 of linear, strongly divergent lobes just above the middle, con- 

 spicuously triple veined: bracts like the leaves, or one of them 

 entire, green, or a few of the upper ones tinged with red: calyx 



