\crada, Utali., (tn<l Arizona. 69 



have been referred to />< rdlijornicu only with doubt. The new 

 species is known only from the Colorado and Mohave Desert 

 regions. It shows close relationship, too, with the type form of 

 B. renifnrnw, but differs from it, as from B. calif ornica, in canes- 

 cence and size of leaves, heads, and achenia. 



Buddleia utahensis sp. nov. 



Shrub 20 to 30 cm. high, young branches leaves and calyces 

 densely tomentose ; leaves linear to narrowly linear-oblong, 

 irregularly crenate, with undulate re volute margins, conspicu- 

 ously venose-reticulate, 1.5 to 2 cm. long, reflexed or divaricate 

 on petioles 1 to 2 mm. long, with smaller leaves axillary-fascicu- 

 late ; inflorescence made up of 2 to 4 distinct spheroidal con- 

 gested clusters (about 1.5 cm. in diameter and about the same 

 distance apart) of flowers spicately arranged at the extremities 

 of the branches ; bracts subtending the clusters similar to the 

 leaves, the uppermost much smaller ; calyx lobes 1 -nerved ; 

 corolla in dried specimens brownish purple, weathering to straw 

 color, tube tomentose without, lobes widely spreading ; anthers 

 sessile in the throat of the corolla. 



This plant is closely related to B. marrubii/olia, but is readily 

 distinguished by its spicate flower clusters and narrow leaves. 

 In that species the single sperical head terminates the branches 

 upon a well defined peduncle, while the leaves vary from ovate 

 to obovate with cuneate base. 



Type specimen in the United States National Herbarium ; 

 collected in 1877 near St. George, southern Utah, by Edward 

 Palmer. 



The plant has been collected but twice, once in the type lo- 

 cality and now at the foot of a limestone cliff just north of Mount- 

 ain Spring, near Olcott Peak, Charleston Mountains, Nevada. 

 The former is the most northerly locality known for any species 

 of the genus. B. marnibiifolia is known in the United States 

 only in southern Texas. 



Brigeron calva sp. no\ 7 . 



Apparently biennial, widely branching from the base, 1 cm. 

 high, sparingly canescent with hirsute pubescence; radical 

 leaves very numerous, blade oblong to obovate, 1 to 1.5 cm. 

 long, tapering into a petiole of twice that length ; upper leaves 

 spatulate, becoming much smaller; heads singly pedunculate 



