1919] Hall: Chrysothamnus nmiseosus and Its Varieties 171 



ciliate. Since also the direction assumed by the leaves is not constant, 

 this variety is exceedingly unstable and probably represents an 

 ecologic form. 



10. Chrysothamnus nauseosus var. bernardinus var. nov. 



Shrub leafy to the summit : annual twigs strict, about 3 dm. long, 

 coated with a smooth gray pannose tomentum, not striate : leaves 

 ascending, linear, 3 to 5 cm. long, 1 to 2 mm. wide, mostly condupli- 

 cate, 1-nerved, very acute, often recurved at tip, green and scabro- 

 puberulent : inflorescence a loose rounded cyme, 3 to 5 cm. across, 

 the lower branches 2 to 6 cm. long: involucre 5-flowered, cylindric- 

 turbinate, about 12 mm. high ; bracts in well-defined ranks, 4 in each 

 rank, keeled, thin, stramineous, lanceolate (the short outermost ones 

 ovate), sharply acuminate, glabrous or slightly erose-ciliate or the 

 outer ones obscurely puberulent : corolla 9 to 10 mm. long ; tube 

 sparsely crisp-puberulent ; lobes linear-lanceolate, acute, 1.8 to 2 mm. 

 long: anther-tips acute, about 0.5 mm. long: style-branches about 

 4 mm. long, stigmatic about one-half their length : akenes densely 

 sericeous-pubescent: pappus soft, about 8 mm. long, becoming pink. 



Frutex undique foliosus: ramulis horotinis strictis non striatis, 

 ca. 3 dm. longis, tomento pannoso cinereo vestitis : foliis ascendentibus, 

 linearibus, 3-5 cm. longis, 1-2 mm. latis, plerumque complicatis, 1- 

 nerviis, acutissimis, apice saepe recurvatis, viridis, scabro-puberulis : 

 inflorescentia cymam rotundam laxifloram formante, 3-5 cm. latam, 

 ramulis inferioribus 2-6 cm. longis: involucris 5-floris, cylindrato- 

 turbinatis, ca. 12 mm. altis, squamis distincte seriatis in utraque serieri 

 verticali 4, carinatis, tenuibus, stramineis, lanceolatis (exterioribus 

 brevioribus ovatis), acuminatis, glabris, nunc parce eroso-ciliatis nunc 

 exterioribus obscure puberulis : corolla 9-10 mm. longa ; tubo parum 

 crispo-puberulo ; lobis lineari-lanceolatis, acutis, 1.8-2 mm. longis : 

 antheris apice acutis, ca. 0.5 mm. longis : styli ramis ca. 4 mm. longis, 

 parte stigmatice duplo longioribus : achaeniis dense sericeo-pubesceuti- 

 bus : pappi setis tenuibus, ca. 8 mm. longis, colore deinde roseis. 



Dry, open hillside at 7400 feet altitude, Bluff Lake, San Bernar- 

 dino Mountains, California, September 2, 1905, Joseph Grinnell 

 (Herb. Univ. Calif, no. 149208), type. As far as known, this variety 

 is confined to the San Bernardino and San Antonio mountains of 

 southern California. The specimens cited below exhibit the follow- 

 ing variations : cyme up to 10 cm. in diameter and the lower branches 

 10 cm. long: involucre 10 to 13 mm. high, occasionally six-flowered. 

 Because of the frequent longitudinal folding of the leaves, these 

 structures often appear much narrower than they really are. This 

 applies to the type as well as to most of the other specimens cited. 



In addition to the type, the following collections apparently belong 

 here : Little Bear Valley, San Bernardino Mountains, Mrs. C. M. 

 Wilder, no. 740; Little Green Valley, San Bernardino Mountains, 



