Notes on Some Southwestern Plants 



By T. D. A. Cockerell 



/ 



Kallstroemia grandiflora Arizonica n. var. 



K. 



flora, growing abundantly by the roadside and in waste places at 

 Phoenix, Arizona, were easily separable into two forms, one of 



the characters thus : 



iifli 



I tabulated 



K. grandiflora Arizonica n. var. 



mm 



Flower 30 mm. in diam. (#. e., Flower 20 

 the cup of the living flower). 



Pistil 9 mm. long. Pistil shorter, 6 mm. and 



stouter in proportion to its 

 length. Filaments shorter. 



Sepals 12 mm. Sepals 8 mm. 



Peduncles 34-43 mm. Peduncles 14-22 mm. 



Leaves rather paler : leaflets Leaves rather darker : leaflets 

 longer in proportion to breadth, (second pair) 6-8 mm. long, 3-4 

 second pair 8-10.5 mm - - on g, broad. 

 3—3*5 broad. 



Beak of fruit much longer (10 Beak of fruit shorter (8 mm.) 

 mm.) and not so thick. and stouter. 



My first opinion was that these were clearly distinct species, 



but without being able to prove one thing or the other, I now 



incline to the opinion that Arizonica should be considered a variety 



or dimorphic form of grandiflora. 



Holacantha Emoryi Gray 



At Buckeye, Arizona, in October, I found a plant growing 

 close to a ditch, and, apparently as the result of the unusual 

 moisture, putting forth numerous narrow leaves, 1 5 mm. long. 

 Dr. B. L. Robinson tells me that Mr. Pringle also collected the 

 plant in this condition. 



> Malvastrum dis sec turn (Nutt.) 



Sida dissecta Nutt.; Torr. & Gray, Fl., i. p. 235. 

 At Las Vegas, N. M., I found M. disseclum growing commonly, 



(87) 



