256 BOTANICAL GAZETTE. 



Pentachceta exilis, Gray. Bot. Cal. I. 305. I doubt if the 

 rays in this species are ever of any color but white. What may 

 pass for "sulphur color" in old specimens is, I think, the result 

 of long keeping in the herbarium : such a change of color as 

 usually happens to the white rays of Composite when the speci- 

 mens are some years old. Everywhere, as seen growing, the 

 rays are white, with usually a purple tinge on the under surface. 



Pentachceta alsinoides, Greene. Bull. Torr. Club. IX. 109. 

 Messrs. Kellogg and Harford collected abundant and excellent 

 specimens of this most distinct species, at Mission Dolores, in the 

 city of San Francisco, as long ago as 1868. I have sought 

 vainly for any trace of ligules in their specimens, which are 

 younger than those of my own gathering last year on the Berke- 

 ley hills. I find it, this year, at Vallejo, while Mrs. M. K. Cur- 

 ran brings in abundance from El Dorado county. Growing with 

 it, in the district last named, Mrs. Curran finds what will have 

 to be called 



Pentachceta APHANTOCHiETA, namely, the Aphantochceta 

 exilis, Gray. Pacif. P. Rep. IV. 100, referred, in Bot. Cal. I. 

 305, to Pentachceta, as variety of P. exilis, Gray. Its herbage, 

 corollas, akenes, pappus, etc., all have characters by which the 

 species is readily distinguished ; and in the very copious speci- 

 mens on hand there is no trace of any running together. 



Grindelia hirsutula, Hook & Arn. Under this name two 

 clearly distinct species are included. One is more slender, with 

 short involucral scales, and smaller heads, which are nodding in 

 the bud. The other is stout, holding its young heads rigidly 

 erect, and having long, spreading involucral scales ; but will any 

 one be able to say which is the original G. hirsutula f The name 

 is equally suited to both. 



Grindelia cuneifolia, Nutt., is assuredly an excellent species, 

 very readily distinguishable from G. robusta, Nutt., by its suffru- 

 tescent growth, and different time of flowering. It is three or 

 four feet high, with a woody trunk, an inch or two in diameter, 

 with a very dark, smooth bark. Its season of flowering is from 

 October to the end of the year. G. robusta is always wholly 

 herbaceous, and is done flowering by the end of August. 



Both Dr. C. C. Parry and Mrs. Curran have this year brought 

 in from the Antioch region good specimens of what Dr. Kellogg 

 once described as Stylocline acaule, and which Dr. Gray, in Bot. 

 Cal. II. 456, refers, as a form, to his own Evax caulescens. It 

 appears to be so good a species of the genus last named that it 

 even invalidates the subgenus Hesperevax ; for it has strictly the 



