1918] Macbride,— A new Perezia , 151 
southern continent, and in all probability the plant that occurred in 
Mrs. Lowe’s garden, since the land was fertilized with wool-waste, 
grew from a seed that came in wool. The company from which the 
wool-waste was secured have informed Mrs. Lowe that a portion at 
least of the wool they use is South American. Remarkable as is this 
occurrence in New England of a new species native to South America 
the situation comes quite within the range of possibilities when one 
recalls that botanical exploration in the southern continent has been 
restricted to comparatively small areas and that there many species 
remain to be recognized. It may be mentioned that a number of 
species of Perezia have been proposed as new within recent years. 
Since the genus Perezia belongs to the tribe Mutisieae, sometimes 
treated as the series Labiataeflorae, a group of the Compositae not 
known to many New England botanists, a few words in regard to the 
character of these plants may not seem out of place. This tribe (or 
series) stands next to the Liguliflorae from which it may be distin- 
guished readily by the bilabiate corollas. The outer lip often is much 
longer than the inner; both not infrequently are toothed. Two genera 
are in cultivation, Gerbera and, to less extent, Chaptalia. In the latter 
genus the outer ray-flowers are always ligulate, a circumstance that 
suggests the close relationship of this group to the Ligulaeflorae. 
Perezia, however, is quite typical of the tribe having as it does all the 
corollas bilabiate. Our plant has a daisy-like aspect and until the 
corollas are examined might be referred to the tribe Anthemideae of 
the Tubuliflorae. Because of the open graceful habit of growth, the 
clear green color of foliage and the rather large heads (about 1.5 cm. 
in diameter) with white rays the plant is attractive enough to warrant 
growing for its beauty. 
The notes upon the occurrence of this plant were kindly furnished by 
Mrs. Ella L. Horr of Worcester who sent to the Gray Herbarium the 
specimen for identification. Fortunately Mrs. Lowe transplanted the 
Perezia to a pot last fall where it has continued to blossom, and Mrs. 
Horr writes that there are now two plants which Mrs. Lowe will place in 
her wild flower garden this season in the hopes of securing fully mature 
achenes. In allusion to the plant as a wanderer it may be called 
_ Perezia aletes, spec. nov., herba annua erecta ut videtur 3 dm. alta; 
caulibus glanduloso-puberulis vel hispidulis gracilibus deorsum 
simplicibus, sursum corymboso-paniculatis; foliis radicalibus rosu- 
latis breviter petiolatis vel subsessilibus oblongis acutis subpinnatifidis 
circa 8 cm. longis, segmentis ovatis cuspidatis sed non spinulosis, 
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