CONTENTS. 
Page. 
Letter of transmittal... 2.2.2.2 0. ec cece ee cee eee cece ee ccc eeccecececececs WW 
REPORT ON A COLLECTION OF PLANTS MADE BY C. H. THompson IN SOUTH- 
WESTERN KANSAS IN 18938. By A. S. HITCHCOCK.............2-------- 537 
Introd nétory statement ic1e2 ssc cnecuid das Gee eee deeds wees See esas 537 
Catalogue Of Species o.322072.cseecueetteneeec Gian. ocs ieieeceeclabet becete 541 
Tistol Specimens <s:cccs irs oaca Sas aenwetens Cesare cee ease temecetes 556 
CREPIS OCCIDENTALIS AND ITS ALLIES. By FREDERICK V. COVILLE......-.-- 559 
PLANTS FROM THE BIG HoRN Mountains OF WyoMING. By J.N. Rose.... 567 
Introductory statement jis iwssocedeesd ae eedse wea Sticaeac este beaes 567 
Catalogue of species .....-..---. Stitt aaa nite eloeaa nae eeeuaee 568 
LEIBERGIA, A NEW GENUS OF UMBELLIFERA FROM THE COLUMBIA RIVER 
REGION. BY JOHN M. COULTER AND J. N. ROSE........---------+---5 575 
ROSEANTHUS, A NEW GENUS OF CUCURBITACE® FROM ACAPULCO, MEXICO. 
By ALFRED COGNIAUX, VERVIERS, BELGIUM.......---2+ ---+ coon ce eeee 577 
ILLUSTRATIONS. 
—_ Facing page. 
Plate XXI. Crepis occidentalis Nutt......-.-------+ eee cece sere cert cree cee 560 
XXII. Crepis monticola Coville......--------++eeeeeeceecee cere tere 562 
XXIII. Crepis subacaulis (Kellogg) Coville......---------+-++-++++22+-- 562 
XXIV. Crepis scopulorum Coville...-..----+++--- +222 -eecrerter ct 563 
XXV. Crepis rostrata Coville......--------00 reece cert ester nee 
XXVI. Crepis barbigera Leiberg .......---------2eee rere treet 565 
XXVII. Leibergia orogenioides Coulter & Rose..----------++-+2e+2- +2007 575 
XXVIII. Roseanthus albiflorus Cogniaux ..---. +--+ +--+ seeee ret eer cre 5TT 
