10 CAPPARIDACEAE 



1. I. arborea Nutt. Bi^dder Bush. Branching:, 2 to 4 feet hi{?li; leaflets 

 oblont;, acute, Vi to 1V1> inches long:; petals G to 8 lines long:, the calyx-lobes half 

 as long:; capsule elliptical or elliptic-oblong: to lanceolate, long:-pointed or short- 

 pointed, IVi to 2^2 inches long:, on long: (lii to % inch) stipes. 



Sand}' valleys or canon sides. 500 to 2500 feet; western Mohave Desert, south- 

 erly to the western Colorado J)esert, thence west to the coa.st from San Diego Co. 

 to Ventura Co. South to Lower California and Sonora. Feb. -May or Xov. 



Note on the flower. — In lat<? April the following notes were made at Cottonwood Springs in 

 the Cottonwood Mountains, n. Colorado Desert: The bushes are now massed with their pendulous 

 pods, the flowers raised above them. The corolla is distinctly "bilabiate" as to position of parts: 

 two petals are erect and approximate, forming an "upper lip"; the two remaining petals form a 

 "lower lip" but are diverging. Four of the stamens spread to the lower side of tlie flower, the 

 other two spread respectively right and left — the six being equally spaced in the semicircle of the 

 lower half of the flower. — Jepson Field Book, 46:249 (Apr. 25, 1928), ms. 



Locs. — Pt. Mugti, Ventura Co., J. T. Howell 3134; Simi Valley, Ventura Co., Jepson 8456; 

 Santa Susana Pass, Jepson 11,901; Fillmore, Kate J. Stirring; Saltdale, ne. of Randsburg, J. T. 

 Eowell 3196; Ludlow, 14 mi. east, Forrest Shreve; Old Woman Sprs., Jepson 5948; Cottonwood 

 Spr., n. Colorado Desert, Jepson 12,615; Lookout Mt. n. of Indio, Jepson; Palm Sprs.. Mt. San 

 Jacinto, Jepson; Whitewater; Playa del Eey, Los Angeles Co., ace. Abrams; Aguanga, Riverside 

 Co. ; Borrego Spr., w. Colorado Desert, Jepson 8894 ; Grapevine Spr., w. Colorado Desert, Jepson 



(Footnote contmued from page 9.) 



from 1930 to 1934 the essentially completed manuscript for the families included in volume two 

 was the subject of verification and preparation for the printer. Lauramay Tinsley (later Mrs. 

 Everett Dempster), who had been employed in 1927, returned in 1933. With an aptitude for 

 specific values and a special interest in the consistency of diagnoses, Mrs. Dempster added a highly 

 developed sense for perceiving clerical slips and tj^ists' errors, discrepancies in word and phrase, 

 a service needful but difficult to secure. For use in this same work, checking the manuscript and 

 validating facts, Joseph Andorfer Ewan was employed in 1932. Stirred by an unusual zest for 

 bibliographic work and possessed of a critical taste in dealing with the California flora, its sys- 

 tematic botany, ecology and geography, he takes a high place in my forty years' roster of graduate 

 students. 



From its beginning in the year 1894 the work on the Flora involved a definite planning of un- 

 derlying foundations. This plan involved many duties and tasks. A few of the more important were : 

 indexing of original factual records; investigation of the life-histories of species in connection 

 with field studies and studies of garden plants and herbarium specimens; careful selection of 

 topotypes, especially for resolving problems offered by the segregationist; dissecting long series 

 of specimens, often to validate a single fact ; recording of counts of organs variable in number ; 

 comparing the specimen from the wild with the garden culture; geographic analysis of the Cali- 

 f ornian area in relation to zonal plant distribution ; definition of local climatic areas in relation to 

 narrow species; solution of problems as to the special morphology of organs; assembling of 

 specifically or varietally like materials and the determination of specific and minor units; working 

 out of ranges of species, especially in connection with climatic factors and topography ; plotting 

 of the range of variation within a species ; coordination of specific units within a genus and the 

 definition of their relationships, as also similar work in the case of genera and families. Such and 

 similar tasks occupied the scanty time of the author for twenty-four years and then he was so 

 fortunate as to employ a promising assistant. Recompense for service depended in the main upon 

 the limited private resources of the author, and an assistant, trained with reference to his special 

 talent, was often obliged because of need for a larger income to give up his place as a helper 

 about the time he had become the most useful. The author's obligation to the Flora of California 

 assistants is, nevertheless, twofold: first, for their direct aid; second, for the high-minded integ- 

 rity of their skepticism and demands for enlightened guidance, which forced from the author ever 

 clearer and ever more rational exposition of the complexities of the daily problems. For this latter 

 advantage the debt may be the greater. 



The illustrations are the work of many different artists. In 1901 Mary H. Swift drew the 

 most excellent illustrations of Coniferae and Fagaceae. The originals of a small number of Chori- 

 petalae done by Helen M. Gilkey in 1915 recall the beauty of stone engravings. In 1920 and 1921 

 Louise Nash produced the series of Carex and Juncus drawings which are remarkable for their 

 virility, strength of line and justness of proportion. Frida Abernathy also furnished some draw- 

 ings, but by far the larger number were made by Joyce M. Saunders. She sensed intuitively what 

 ■was needed and by the use of few lines produced clear and life-like drawings which were marked 

 by a precision and swiftness of execution that had all the suggestion of deliberate ease. In 1932 

 Virginia Long Bailey was engaged on various drawings used in volume two. For the devotion of 

 all these artists there is deep appreciation. — W. L. J., January 25, 1935. 



