Vol.11 Hall. — Botanical Survey of San Jacinto Mountain. 109 



Monardella linoides stricta Parish, Erythea vii. 96 (1899). 



Along the lower edge of the pine belt in Tahquitz and Thomas 

 valleys. The variety is an altitndinal form of the species, since 

 in the San Jacinto, San Bernardino, and San Antonio Mts. it is 

 found at 6000-8000 ft. alt., while typical M. linoides belongs to 

 the borders of the Colorado and Mohave deserts. 



Monardella macrantha Gray, and Its Allies. 



Since the range of all the Monardellas of the macrantha 

 section is restricted to the mountain and foot-hill region extend- 

 ing from the San Jacinto Mts. north to the San Bernardino Mts. 

 and south to San Diego, an attempt has been made to collect 

 specimens of all the species, varieties, and forms belonging to 

 this group. As a result we now have before us an interesting 

 series which throws considerable light on the relations between 

 the different forms. These forms may be so arranged as to 

 exhibit certain lines of variation, the extremes of which are very 

 unlike and might easily be taken for distinct species, as in fact 

 they have been by some, although they are all connected 1\v 

 intermediate forms. The form described below under the name 

 M. macrantha arida, with its almost minute leaves closely 

 arranged on the short stems, and its small, pale flowers, seems 

 so very distinct from the true 31. macrantha, with its tall stems, 

 large leaves, elongated internodes, and deep scarlet flowers an inch 

 and a half long, that one might never think of placing them in 

 the same species if intermediate forms were not present. There 

 is, however, every gradation from the one extreme to the other, 

 and, since similar gradations exist between the other widely 

 separated forms, it has seemed best to consider them all as 

 varieties of a single species, for which the oldest name, viz,, 

 M. macrantha, has been retained. 



The different varieties and forms of M. macrantha, as exhib- 

 ited by the material at hand, are described below. For a 

 discussion concerning the conditions which were probably the 

 cause of certain variations in this group see p. 44. Unless 

 otherwise stated the number cited are of the wi-iter's own 

 collecting. 



