ADDITIONS AND CORRECTIONS 1139 



Page 



857 After C. salicifolius insert: 



26a. Chrysothamnus calif ornicus Greene. Shrub 4-6 dm. high; 

 stem white-tomentose; leaves linear, 4-6 cm. long, 4-6 mm. wide, 

 densely white-tomentose; heads in dense corymbiform cymes; involucres 

 8-10 mm. high; bracts 3-4 in each vertical row, linear-lanceolate, acute, 

 minutely puberulent; corolla fully 1 cm. long; achenes densely strigose. 

 Desert regions: Calif. sw Utah. An. 



859 The authority for Isocoma should be Nutt., not Greene. 



860 The authority of S. grindelioides should be (Nutt.) Britton. 



872 Under P. pumila, the authority for the synonym Solidago pumila is 



(Nutt.) T. & G. 

 872 After P. pumila insert: 



2. Petradoria graminea Woot. Tufted perennial, with a woody 

 caudex; stems 1-1.5 dm. high; leaves linear, rigid, pointed, l-ribbed> 

 3-5 cm. long, glabrous, with a dilated base, heads cylindric, 6-7 mm. 

 high; bracts straw-colored, acute to cuspidate or obtuse; flowers 5; achenes 

 glabrous. Desert hills; nw N. M. c Utah. Jl. 



876 To the common name of Xylarrhiza add " WOODY ASTER." 



878 Under E. Engelmannii the synonym should read Aster elegans Engel- 

 mannii D. C. Eat. 



885 The authority of A. commutaius should be (T. & G.) A. Gray. 



898 In key, 13th line, under section IV, for "disk over 1 dm. high" read 

 "disk more than 1 cm. high, " and 18th line the words "26. E. Engelmannii" 

 should be transferred to the end of the next line. 



902 Under E. compositus, 6th line, for discoidens read disccideus. 



906 The authority for E. speciosus should be (Lindl.) DC. 



909 Under E. nevadensis, 2d line, for "5-10 mm." read "5-10 cm." 



910 The authority of Erigeron arenarioides should be (D. C. Eaton) Rydb. 

 913 Under M. racemosa, 3d line, for "8-10 cm." read "8-10 mm." 



923 Before 58. Adenocaulon insert: 



57a. INULA L. ELECAMPANE. 



Coarse herbs with alternate, simple leaves and large radiate heads. 

 Involucre hemispheric; bracts imbricate, the outer foliaceous. Receptacle 

 naked. Disk-flowers perfect and fertile. Style branches linear, rounded 

 at the apex. Anthers caudate at the base. Achenes m >re or less 4- or 5- 

 ribbed; pappus simple, of capillary bristles. 



1. I. Helenium L. Stout perennial; stem 1-1.5 m. high; leaves 

 large, woolly beneath, denticulate, the lower ovate, the petiole 2-4 cm. 

 long; upper leaves clasping, ovate, sessile; heads large, terminating the 

 stem and branches; li gules very many, long and slender, 2-3 cm. long. 

 Roadsides and pastures: N. S. Minn. Mo. N. C.; Utah; adv. or 

 nat. from Eur. Au. 



936 Before Thelesperma insert: 



79d. COSMOS L. COSMOS. 



Annual or perennial caulescent herbs. Leaves opposite, entire to pin- 

 natifid. Heads radiate. Involucres nearly hemispheric; bracts thin, in 

 2 series, united at the base, the outer usually smaller. Receptacle naked, 

 flat or nearly so. Ray-flowers neutral; ligule pink or purple, rarely orange 

 or white. Disk-flowers perfect and fertile; corolla yellow. Achenes 

 5-angled or flattened on the back, beaked. Pappus of 2-4 persistent barbs 

 or a mere crown. 



