OF ARTS AND SCIENCES: FEBRUARY 13, 1872. 391 



284. Madia (Madaria DC.) elegans Don; chiefly the form 

 which is M. racemosa Nutt., and a depauperate slender state of it. 



285. Madia (Amida Nutt.) glomerata Hook. 1. c. Includes 

 Amida gracilis and A. hirsuta Nutt. 



286. Madia (Anisocarpus) Nuttallii, Anisocarpus madioides 

 Nutt. 1. c* 



287. Madia racemosa Torr. & Gray, Fl. 2, p. 405. Madorella 

 racemosa Nutt. 



288. Madia (Harp^ecarpus) filipes. Harpcecarpus madarioides 

 Nutt. This and the related M. exigua (Sclerocarpus exiguus Smith) 

 form a marked section of the genus as now extended. 



289. Lagophylla ramosissima Nutt. ; Torr. & Gray, Fl. 2, 

 p. 402. 



290. Achillea Millefolium L., a dwarf variety of high moun- 

 tains. A. tomentosa Pursh. 



0. Cotula australis Hook, f, Fl. N. Zeal. 1, p. 128. Strongylo- 

 sperma DC. A few specimens, probably adventive ; but the species is 

 spreading widely over Pacific coasts. 



291. Artemisia dracunculoides Pursh ; Torr. & Gray, Fl. 2, 

 p. 416. 



292. Artemisia Canadensis Michx. ; Torr. & Gray, 1. c. 



293. Artemisia Ludoviciana Nutt., var. latifolia Torr. & 

 Gray. 294. Var. Douglasiana Eaton in Watson, Bot. King (A. 

 Douglasiana Besser), and another form near it. 



295. Artemisia discolor Dougl. in Hook, 1. c. Only the tops of 

 the plant, and of doubtful determination. 



296. Gnaphalium (Gamoceleta) purpureum L. 



297. Gnaphalium palustre Nutt. 1. c. G. gossypinam Nutt. is 

 the same plant. 



298. Gnaphalium luteo-album L. G. Sprengelii Hook. & 

 Arn. Bot. Beech. 



299. Gnaphalium microcephalum Nutt. 1. c. A slender form. 



300. Gnaphalium leucocephalum Gray, PI. Wright, 2, p. 99. 

 This and the last are new to Oregon. 



* Madia Bolaxderi (as Anisocarpus Bolanderi, Gray, must be called in the 

 re-arrangement of theMadioid genera) is surpassed in size of heads and rays by an 

 allied Californian species having fertile disk-flowers, M. radiata Kellogg in Proc. 

 Calif. Acad. 4, p. 190, Jan. 1872. 



