71 



tinged with pink iu dryinfr, l^ lines long, with slender tube: capsule obtuse 

 at base, free from calyx merely at the top, eraarginate at ai)ex ; seeds 4, mi- 

 nutely reticulated. -Growing on sand. A very rare and well-marked species. 



No. 28 



COMPOSITiE. 



Hofmeisteria faaciculata Walp. Rep. VI. 100, Collected by Hinds, Xautns (No. 

 46), and lirandegee. It is illustrated in Bot. Sulph uuder Helogyue. Very 

 abundant in crevices of rocky bluffs facing the ocean. Whole plant light 

 green, about a foot high, leaves very fleshy, iiowera rose-colored. No. 137. 



Aplopappus arenarius Benth. It is undoubtedly a true Aplopappus and probably 

 Beutham's species from Cape St. Lucas. It does not appear to be Xautus's spe- 

 cies, referred here by Gray. Tlie A. spinitlosus of Brandegee, from San Gregoria, 

 probably belongs with it. The style tips are deltoid and the akenes are turbi- 

 nate, and 8 to 10-ribbed. Found on the mesas and exposed places. A compact 

 plant and an abundant bloomer. No. 17. 



Coulterella,' n. gen. (Plate I.) Heads 1-flowered (rarely 2), in cymose, glomerate 

 clusters. Flowers tubular, fertile. Proper involucre tubular, of three united 

 bracts, ;i-toothed at apex, winged in fruit, inclosing the ovary and corolla tube 

 and permanently investing the akene. Corolla regular, with narrow proper 

 tube and deeply cut into lanceolate divisions longer than the tube. Stamens 

 inserted high up in the tube ; anthers wlioUy exserted, sagittate at base. Style 

 branches ^dongated and obtuse, papillo>e, Akene linearcuneate and terete; 

 pappus a minute annular crown or ob.solete.— A compact shrub, glabrous and 

 succulent. Leaves opposite, entire or dentate, sessile. Corolla yellow. Prob- 

 ably belonging to the tribe Heliantkoidew, sub-tribe Lagascea, but possibly of 

 the tribe Inuloidea; and a relationwhip has been suggested with Gray's little 

 Dimeresia of Oregon. The opposite leaves, broad style-branches and merely 

 sagittate anthers seem to more properly refer it to the former tribe. Named 

 in honor of John M. Coulter, editor of Botanical Gazette and author of numer- 

 ous botanical works. 



Coulterella capitata, n. sp. A shrub with many branches, forming a large bush 4 

 feet higii: leaves very ileshy, about an iuch long, with few spiny dentations: 

 the glomerate clusters loose, (> to 25-flowered, each head in the axil of a small 

 setaceous bract: corolla lobes :i-nerve<l, 2 lines long: involucre in fruit 3 to 

 4 lines long, spongy, 3-angled or winged : akenes U lines long : the plant 

 has a strong aroma of the oil of lemon.— Rare, on a sandy beach near the ocean. 

 No. 136. 



EXPLANATION TO PLATE I. 



a, A head with the base of the receptacle, and three of the bracts, b. A flower, 

 c, A flower; the involucre removed, d. A flower laid open, and the style withdrawn 

 from the anther-tube. e. A pollen-grain, /. Involucre of a young flower. .7. Four- 

 winged involucre of an older flower, h. Three- winged involucre of an older flower. 

 i. The acheiiinm. k, I, m, 7(. Four leaves showing diftereuce in form. 

 Parthenice mollis Gray fide Brandegee. No. 66. 

 Franseria tenuifolia Gray. " Instafiata ; " a remedy for fever and ague. Collected 



by Xantus (No. 55). No. 53. 

 Viguiera deltoidea Gray. Proc. Amer. Acad. V. Kil. Dr. Palmer has collected 

 this si)ecies again, near the original station. He says " its several stems form 

 a compact, shrubby plant, 8 to 10 feet high, blooming abundantly. It is very 

 common along guUeys and among trees and shrubs on the mesas. Tliis plant 

 is much taller than was originally supposed. The leaves are either alternate 



'Read before the Biological Society of Wu.sliinjitoD, D. C, May 31, 1890. 



