432 ADDITIONS AND CORRECTIONS TO VOL. I. 



Page 43. 18. VESICARIA. 



1. V. montana, Gray. Humbug Hills, near Yreka, Rev. E. L. Greene; Mult- 

 nomah County, Oregon, J. Howell. 



Page 44. 20. TROPIDOCARPUM. 



1. T. gracile, Hook. Near Auburn, Placer County, Mrs. R. M. Austin. 

 Page 45. 23. THLASPI. 



1. T. alpestre, Linn. On Spanish Peak, Plumas County, Mrs. R. M. Austin ; 

 near Yreka, Greene ; near Waldo, Josephine County, Oregon, V. Rattan. 



24. LEPIDIUM. 



2. L. dictyotum, var. acutidens, Gray, Proc. Amer. Acad. xii. 54. Wings 

 more produced and subacuminate, divergent. Near Yreka, Greene. 



3. L. oxycarpum, Torr. & Gray, var. (?) strictum, Watson. Common among 

 Live Oaks on the Mokelumne Eiver, and in Hoopa Valley, Humboldt County, 

 V. Rattan, 1878; San Francisco, G. R. Vasey. 



4. L. nitidum, Nutt. Placer County, Mrs. R. M. Austin; The Dalles, Oregon, 

 Nevius; Klickitat County, Washington Territory, J. Howell. 



9. L. montanum, Nutt. On Shasta Eiver, in alkaline soil, Greene. 



t H Introduced biennials or perennials : leaves auricled at base, not parted 



nor lobed. 



1 2. L. Draba, Linn. Perennial, minutely pubescent or nearly glabrous : stems 

 a foot high or more, corymbosely branched at the summit : leaves oblong-obovate, 

 1 to 3 inches long, sparingly serrate or entire : petals large and conspicuous : pods 

 cordate, not winged, turgid, beaked by a slender style. 



Near Yreka, in a field long uncultivated, Rev . E. L. Greene. 



13. L. campestre, Linn. Biennial, pubescent : stems stout, erect, a foot high 

 or more : leaves lanceolate, serrate, or the lowest oblanceolate and somewhat lobed : 

 flowers smaller : pods ovate, scabrous, broadly winged ; style exceeding the wings. 



Near Waldo, Josephine County, Oregon ( V. Rattan), and likely to be found as an introduced 

 weed in old fields in California. 



-J- -t- -t- -t- Dwarf cespitose desert perennial. 



14. L. nanum, Watson. In dense mats scarcely an inch high, the very numer- 

 ous short and densely leafy branches from a somewhat woody base : leaves about a 

 line long, with broad ciliate petiole and deeply 3-lobed summit, the lobes rounded 

 and obtuse : flowering peduncle naked, scarcely exceeding the leaves, 1 - 5-flowered : 

 pods ovate, acute, a line long, scarcely winged or toothed at the apex, beaked by the 

 slender style. Bot. King Exp. 30, t. 4, fig. 5-7. 



Head of Holmes Creek, Northeastern Nevada (Watsmi), and near Halleck's Station on the 

 Humboldt River ( Wlieder) ; probably to be found in the desert region of Northeastern California. 



Page 48. 27. BISCUTELLA. 



1. B. Californica, Benth. & Hook. San Bernardino Mountains, Parry & Lem- 

 mon, S. B. Parish. 



B. WISLIZENI (Dithyrcea Wislizeni, Engelm.) should be credited to Beutham & Hooker. 



Page 49. 28. THYSANOCAEPUS. 



4. T. pusillus, Hook. Plumas County, Mrs. R, M. Austin. 



