^. 



262 I.BAFI.ETS. 



Station among the Oakland Hills, this more than fifty 

 years since, and evidently not distributed ; probably an 

 unique specimen . This has been in the hands of M . 

 Cr^pin, whose remark (in sched.) is that it may be abnor- 

 mal. He has not observed those other characters by which 

 this would claim specific rank even were it gymnocarpous. 



Rosa BrkwSRI. lyow, rigidly branching, the bark green 

 on old twigs as on young, the armature diversified, some 

 prickles very stout, short, recurved, others as stout, long, 

 straight, slender-pointed, smaller and more bristly ones num- 

 erous: leaflets 5 to 7, smallish, obovate, obtuse, doubly serrate, 

 densely and somewhat strigosely pubescent on both faces ; 

 rachis with one or more stout straight prickles and numerous 

 short-stalked glands ; stipules neither large nor notably glan- 

 dular : peduncles solitary, short, stout, glandular-hispid: fruit 

 very large, round-ovoid, glaucescent, crowned with sepals 

 externally glandular-hispid and strigulose. 



Collected on the Calif. Geol. Survey fifty years since, by 

 W. H. Brewer, near San Tos6, 30 August, in very ripe fruit. 



Rosa granui^aTA. I^ow, slender, the bark green, the scat- 

 tered larger spines long, rather slender, more or less curved 

 or deflexed, the smallest straight, spreading, often gland- 

 tipped : leaves not small, of 5 leaflets, these oval or obovate, 

 acutely and doubly serrate, almost alike green on both faces, 

 with a trace of pubescence as well as a pronounced roughness 

 that is between muriculate and granular, on younger leaves 

 rather granular than otherwise, this indument chiefly of the 

 lower face; rachis very rough with small subsessile glands: 

 flowers solitary, their short pedicels and also the ovaries glan- 

 dular-prickly: fruit not known. 



lyike the last, collected by Brewer, somewhere near San Luis 

 Obispo, Calif., in April, 1861. Perhaps akin to R.grattssima. 



Rosa Covii.lbi. Evidently low, perhaps seldom a foot 

 high ; bark rather pale, glaucescent, beset with rather slender 

 spines of several lengths but all spreading and straight : leaf- 



