78 PROCEEDINGS OP THE AMERICAN ACADEMY 



oribus) dimidio breviore. — California, in the mountains 45 miles 

 north-east of San Diego, Dr. Palmer. Larger leaves 3" inches long, 

 somewhat triple-nerved; the upper successively smaller. Disk little 

 over half an inch in diameter ; raj's from two-thirds to a full inch in 

 length. 



'' IvA Hayesiaxa. Frutescens, striguloso-puberula ; caule (ad bipe- 

 dalem et ultra, basi baud viso) erecto demum paniculato-ramoso; foliis 

 integerrimis obtusis, caulinis oppositis spathuluto-oblongis vel sub- 

 lanceolatis in petiolum attenuatis, ramealibus bractealibusque alternis 

 ad linearia ; capitulis longe laxiuscule quasi spicatis vel racemosis ; 

 involucro e squamis circiter 5 rotundatis discretis imbricatis. — San 

 Diego County, California; Warner's Pass, Sutton Hayes (1858); 

 and Jamuel Valley, south-east of San Diego, Dr. E. Palmer. A well- 

 marked species, resembling I. cheiranthifoUa rather than /. axillaris. 

 Heads numerous in elongated leafy-bracted spikes or racemes, and 

 these in an ample panicle ; the ultimate floral leaves or bracts hardly 

 exceeding the nodding heads. lu memory of the estimable discov- 

 erer, tlie late Mr. Sutton Hayes, whose specimens, however, were 

 indeterminable, the heads having all fallen from their short peduncles. 



ExcELiA (Ger^a) visciDA. Herbacea, viscido-glandulosa ; caule 

 forte bipedali (basi ignoto) ramis costaque foliorum pilis longis patulis 

 multi-articulatis barbatis ; foliis ovatis oblongisve plerumque basi auri- 

 culata vel cordata semiamplexicaulibus subserratis ; capitulis ramulos 

 breves fuliatos terminantibus ; involucro extus viscido, squamis exteri- 

 oribus herbaceo-membranaceis lato-liuearibus obtusis parum inseqna- 

 libus, intimis scariosis paleis receptaculi similibus ; ligulis nuUis ; 

 corollis radii pallide flavis ; acheniis angusto-cuneatis calloso-margiuatis 

 biaristatis praesertim ad margines albo-villosissimis. — Near Larkens' 

 Station, on the southern borders of California, 80 miles east of San 

 Diego, Dr. Palmer, Head nearly three-fourths of an inch long: 

 akenes 4 or 5 lines long, and their subulate awns 2 or 3 lines. The 

 habit is that of a Hulsea, rather than of any of its congeners. 



''' Perityle ixcana. Suffrutescens, procera, tomento appLuiato 

 incana: foliis (etiam inferioribus ?) alternis crassiusculis fere trisectis, 

 segmentis cuueatis 2-3-fidis, lobis pauci-incisis ; capitulis compluribus 

 in cymam compositam corymbosam nudam conge^tis ; involucro viii- 

 dulo; ligulis nullis ; apiiendicibusstyli breviusculisacutiusculis ; acheniis 

 oblongis subtnrgidis undique villosis ; pappo exaristato e squamellis 

 plurirais angustissimis basi coroniformi-concretis. — Guadalupe Island, 

 off Lower California, Dr. E. Palmer. On precipices inaccessible to 



