364 PROCEEDINGS OF THE AMERICAN ACADEMY 



PHALACROSERIS, Nov. Gen. Cichoracearum. 



Capitulurn pluriflorum. Involucrura campanulatum ecalyculatura, 

 e squamia 12-16 lato-lanceolatis aaqualibus biserialibus ima basi con- 

 natis. Receptaculum convexum nudum. Achenia conformia, breviter 

 oblonga, subquadrata vel 4-5-costata, laeria, disco epigyno magno : 

 pappus nulliis. — Herba Californica, glaberrirna, Troximi facie; foliis 

 lineari-lanceolatis seu oblanceolatis integerrimis cum scapis prossus 

 nudis monocephalis e caudice perenni ; capitulo ante antbesin erecto ; 

 floribus flavis. 



Phalacroseris Bolanderi. Westfall's Meadows, above Yo- 

 semite Valley, alt. 8,000 feet, [also collected by Dr. Torrey in I860, 

 specimens just received,] Bolander. Leaves tufted on the summit of 

 the thickish caudex, 3 to 9 inches long, about 3 lines wide, rather soft, 

 mostly obtuse. Scapes wholly leafless and naked, 6 to 14 inches high ; 

 the solitary head about the size of that of Leontodon autumnale. Scales 

 of the involucre about half an inch long, rather herbaceous, lanceolati, 

 acutish. Corolla with a short glabrous tube and an oblong-linear ex- 

 serted ligule. Achenia a line and a half long, thickish, somewhat 

 unequally 4-5-angled, very smooth, the broad naked apex truncate. — 

 I know of no genus having a pappus with which this plant would readily 

 associate. 



Calais (Scorzonella) glauca: 1-3-pedalis; ramis peduncu- 

 lisve strictis sa3pe validis fistulosis ; foliis lanceolatis oblongisve acumi- 

 natis nunc integerrimis vel denticulatis nunc laciniatis; pappi paleis 

 lanceolato- seu ovato-subulatis in aristam attenuatis. Hymenonema ? 



P. annua (Gray, PI. Wright. 1. c.) : furfuracea, cinerea; foliis deltoideo-dilatatis 



subreniformibus vel supremis cuneatis angulato-dentalis ; involucri squamis lanceo- 

 latis ; floribus luteis ; aeheniis oblongo-turbinatis ; pappi setis paucioribus minus 

 inaeqnalibus. Bul'jostylis (Psathyrotus) annua, Nutt. PL Gamb. p. 179. — "Rocky 

 Mountains near Santa Fe," Dr. Gambel, according to Nuttall ; perhaps from fur- 

 ther West, having now been rediscovered in the Sierra Nevada of California. 

 Bolander's specimens accord with Nuttall's plant, which, however, wants the lower 

 leaves ; and the bristles of the pappus are less unequal, almost uniserial. 



§ 2. Scaposae, capitulis subcorymbosis nudis erectis. Involucri squama? sub- 

 conformes, interiores vix nervatse haud decidual. Corolla? sursam subampliatse, 

 dentibus extus pilis paucis brevioribus viscosis prcedita?. Styli rami longiores, cx- 

 tus hirtelli, apice obtuso. Achenia oblongo-turbinata, minus villosa. Pappi seta? 

 valde ina?quales. 



P. scaposa, Gray, PI. Wright. 1. c. t. 13. 



P. incisa, Gray, PI. Thurb. 1. c. == TrichoptUium incision, Gray in Bot. Mex. 

 Bound, p. 97. 



