OF ARTS AND SCIENCES. 207 



dalibus thyrsoideo-florihundis ; foliis submerabranaceis lanceolatis basi 

 acutis sessilibus vel in petiolo brevissimo marginato atteiiuatis minus 

 reticulatis; capitulis plerisque breviuscule ac graciliter pedunculatis 

 10-12-floris; involucri pauciscriati bracteis sensim acutatis, intimis 

 linearibus, extimis ovato-lanceolatis. — Kucker Valley in the Chir- 

 ricahiia Mountains, S. Arizona, Lemmon, 1881. 



Brickellia cylixdracea, Gray & Engelm., var. laxa. Forma 

 caule aut simplici aut laxe ramoso ; capitulis minoribus aperte panicu- 

 latis nunc brevissime nunc exserte pedunculatis ; foliis ramealibus 

 petiolatis. — Southwestern part of Texas, at Georgetown and Bluffton, 

 Pahner. 



Brickellia grandiflora, Nutt., var. petiolaris. Forma gra- 

 cilis, sat elata ; foliis hastato-deltoideis nunc longe sensim acuminatis 

 petiolo gracillimo (1-2 pollicari) paullo parumve longioribus. — ]Moun- 

 tains of S. Arizona, Lemmon. 



Brickellia frutescexs. Frutex humilis ; ramis divaricatis ca- 

 pitulis subsolitariis terminatis ; foliis omnibus alternis parvis (lin. 3-5 

 longis) spatliulatis integerrimis eveniis ; involucro circa 20-floro, brac- 

 teis obtusiusculis ; acheniis glabellis ; pappi setis minutissime crebre- 

 que serrulatis. — Tantillas Canon, near the borders of San Diego 

 Co., but within Lower California, Palmer, 1875, with heads undevel- 

 oped. Mountain Springs, San Diego Co., G. R. Vasey, 1880, in flower. 

 And, according to Dr. Vasey, also collected by the late Sutton Hayes in 

 the same district. 



KuHNiA ScHAFFNERi. Humilis, glaucescens, fere glabra; radici- 

 bus tuberosis ; caulibus brevibus decumbentibus foliis sublinearibus 

 oblongisve integerrimis parvis (lin. 3-6 longis) crebre instructis, fertili- 

 bus pedunculo adsurgente nudo scapiformi (ultra-spithamjEo) mono- 

 cephalo terminatis; capitulo ultra-semipollicari. — Valley of Mexico, 

 Schaffner. Sent by the discoverer, without name, to Dr. Cosson 

 of Paris. 



Lessingia glandulifera. L. Germanoriim sat proxima ; caule 

 erecto ramosissimo ; ramis ri<iidis ramulisque foliis parvis crebris 

 nunc quasi imbricatis coriaceis rigidis glabris margine pi. m. glan- 

 duliferis instructis ; involucro magis turbinato, bracteis etiam sa^pius 

 glanduliferis ; glandulis modo Calycadenice claviformibus. L. Ger- 

 manorum et L. ramulosa, var. tenuis, pro parte, Gray, Bot. Calif, i. 307, 

 etc. — L. Germanoriim, Less., of which I have an original specimen, is 

 Avhitened when young with an appres>ed tomentum, even up to the in- 

 volucre ; the bracts of which are less unequal, more foliaceous, and, 



