3G4 PROCEEDINGS OF THE AMERICAN ACADEMY 



PHALACROSERIS, Nov. Gen. Cichoracearum. 



Capitulum pluriflorum. Involucrum campanuUitum ecalyculatura, 

 e squamis 12 — 16 lato-lanceolatis aequalibus biserialibus ima basi con- 

 natis. Receptaculura convexuin nudum. Achenia conformia, breviter 

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

 pappus nullus. — Herba Californica, glaberrima, Troximi facie ; fbliis 

 lineari-lanceolatis seu oblanceolatis integerrimis cum scapis prossus 

 nudis monocephalis e caudice perenni ; capitulo ante anthesin erecto ; 

 flofibus flavis. 



Phalacrosekis Bolanderi. Wesffall's Meadows, above Yo- 

 semite Valley, alt. 8,000 feet, [also collected by Dr. Torrey in 1865, 

 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 bi-oad 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 saspe 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. Wrij^ht. 1. c.) : fiirfuracea, cinerea ; foliis deltoideo-dilatatis 

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

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

 insequalibus. Bulbostylis (Psathi/rotus) annua, Nutt. PL Gamb. p. 179. — !' Rocky 

 Mountains near Santa Fc," 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 nervat;e baud decidute. Corollae sursuin subampliattc, 

 dentibus extus pilis panels brevioribus viscosis prseditse. Styli rami longiores, ex- 

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

 valde inaequales. 



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



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

 Bound, p. 97. 



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