78 TROCEEDINGS OF THE AMERICAN ACADEMY 



oribus) dimidio breviore. — California, in the mountains 4o 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 iu diameter ; rays from two-thirds to a full inch in 

 length. 



IvA Hayesiana. Frutescens, sti'iguloso-iiuberula ; caule (ad bipe- 

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

 integerrimis obtusis, caulinis oppositis spathulato-oblongis vel sub- 

 lanceolatis in petiolum attenuatis, ramealibus bractealibusque alternis 

 ad linearia ; capitulis longe laxiuscule quasi spicatis vel racemosis ; 

 involucro e squaniis circiter 5 rotundatis discretis imbricatis. — San 

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

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

 marked species, resembling I. clieiranthi folia rather than /. axillaris. 

 Heads numerous in elongated leaf'y-bracted spikes or racemes, and 

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

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

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

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



Encklia (Ger^a) viscida. Herbacea, viscido-glaiidulosa ; caule 

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

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

 culata vel cordata semiaraj^lexicaulibus subserratis ; capitulis ramulos 

 breves foliates terminantibus ; involucro extus viscido, sqiiamis extcri- 

 oribus herbaceo-membranaceis lato-linearibus obtusis parum ina^qua- 

 libus, intimis scariosis paleis receptaculi similibus ; ligulis nullis ; 

 coroUisTadii pallide»flavis ; acheniis angusto-cuneatis calloso-marginatis 

 biaristatis priesertim 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 Ilalsea, rather than of any of its congeners. 



Perityle incana. Suffiutescens, procera, tomento apphuiato 

 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 viri- 

 dulo; ligulis nullis ; appendicibus styli breviusculis acutiusculis ; acheniis 

 oblongis subturgidis undique villosis ; pappo exaristato e squamollis 

 plurimis angustissimis basi coroniformi-concretis. — Guadalupe Island, 

 oil" Lower California, Dr. ¥.. Palmer. On precipices inaccessible to 



