34 BOTANICAL GAZETTE. 



edgewise to the sun. The older leaves, however, are not even pen- 

 dent and hold no particular position to the sun, and the trees give 

 a great deal of shade though not as much as the broader leaved de- 

 ciduous trees that have also a dense foliage. 



Helianthemum scoparium is an almost shrubby perennial. 



Arabis platysperma, in robust specimens has auricled leaves: 

 the pubescence is more branched than "stellate." 



Arenaria Douglasii has concentrically striate seeds, and they 

 are often hairy at the hilum. 



Hosackia subpinnata undoubtedly shows a transition to H. 

 Purshiana. 



I have what I suppose must pass for Oxythrca dendroidea, from 

 Nevada. My specimens have all but the lowest bracts in twos: 

 leaves hirsute, linear-oblanceolate; awns 1^ to 3 times the length of 

 the involucre; flowers hirsute; pedicel and involucre glabrous, all 

 the rest of the plant with stalked glands and some stellate hairs. 



Menyanthes trifoliata grows in patches acres in extent in the 

 Sierras and at Park City, Utah. 



Juniperus occidentalis. 1 found a peculiar form of this with 

 seed protruding from the berry like an acorn in the cup. Dr. En- 

 gelmann informs me that this sometimes occurs. I had never 

 seen it in any Juniperus before. The leaves also have a large pel- 

 lucid spot in the center. 



The corolla of Trifolium barbigerum is very beautiful under a 

 microscope magnifying about 30 diameters; it is covered with a 

 white or purple net-work with circular meshes. The same is true 

 of T. cyathiferum though in a less marked degree. 



The seeds of Hoxiivkiii strigosa appears to the eye to be almost 

 square with a notch on one side. They are, at least in my num- 

 erous specimens, a sure index to the species. 



Hosackia maritima is often perfectly smooth, leaflets *>-". stems 

 2° long, prostrate. 



HosacKa Torreyi has the standard beautifully veined with 

 purple. 



Trifolium microcephalum has the lobes of the involucre often 

 two-toothed. 



My specimens of Trifolium microdon are very smooth except 

 the pedicels. 



Con/us Californica has very interesting branched hairs. The 

 pubescence of Platanus racemom called "tomeutum" in But. Cat. is 

 made up of very long hairs, branched in whorls or singly and jointed, 

 densely matted, with straight, simple, rather flat hairs on the very 

 young stems. The pubescence is more beautiful than that of Alter- 

 nanthera lanuginosa. 



I have Hosackia oblongi folia from Santa Cruz, which verifies 

 Mr. Coulter's locality, upon which doubt is thrown in Hot. Cal. 



