OF ARTS AND SCIENCES : JANUARY 26, 1870. 187 



longioribusque. — Northern Mexico ; in the vicinity of Buena Vista, 

 Edwards ; Monterey, Gregg. 



§ 13. Pseudo-stipulata (Substipirfata), Benth. Flos basi obtusis- 

 siraa cum pedicello articulatus, extus minute glandulosus. Ova- 

 rium glabrum. Achenium acute triquetrum. Involucra soepius- 

 que pedicelli Pedunculatorum. Caules ramosi foliati, sed folia 

 rite evoluta semper secundaria, nempe in axillis caulinorum ad 

 bracteas oppositas seu 3 - 4-nas stipukeformes redactorum gemina 

 vel fasciculata. Embryo praBcedentium. Herbse. 



* Involucra sublonge pedicellata, multiflora, 5-dentata, dentibus bre- 

 vibus latis. Flores in pedicellis brevibus baud ultra bracteolas 

 exserti. 



75. E. axgulosum, Benth. Eriog. p. 406, t. 18, f. 1. Annuum, 

 floecoso-lanosum, demum glabrescens ; caulibus erectis in paniculam 

 effusam repetito 2 - 3-chotomam divisis ; ramis acute 4 - 6-angulatis ; 

 pedicellis filiformibus patentissimis ; foliis radicalibus spathulatis vel 

 rotundatis, caulinis propriis bracteosformibus parvis stipulas brunneo- 

 scariosas mentientibus, axillaribus geminis vel fasciculatis oblongo- 

 linearibus lanceolatisque ; involucris brevi-campanulatis seu hemisphae- 

 ricis minute glandulosis nunc fere laavibus ; fructiferis demum explana- 

 tis bracteas internas (potius quam bracteolas) inferne lanigeras late 

 spathulatas vix adaaquantibus ; perigonio roseo vel albo profunde 5- 

 partito, segmentis exterioribus ovatis concavis, interioribus demum 

 longioribus lanceolato-oblongis. — California and Nevada, apparently 

 common. A span to a foot high, at length diffuse. Pedicels from 

 six to twelve lines long. Flowers barely one line long, on slender 

 internal pedicels which do not exceed the firm dilated bracts that 

 subtend them ; the proper bractlets minute and capilary, and villose- 

 plumose or often wanting. 



76. E. Greggii, n. gp. Subpedale, e radice perenni erectum, pu- 

 berulum, subglandulosum ; foliis radicalibus et fasciculorum spathulatis 

 in petiolum marginatum attenuatis subciliatis glabellis (petiolis nunc 

 parce hirsutis), caulinis 3 - 4-nis lanceolatis brevibus herbaceis in och- 

 ream basi connatis ; pedicellis subracemosis erectis, inferioribus ultra- 

 pollicaribus ; . involucro turbinato-campanulato ; bracteolis tenuibus 

 hirsutis ; perigonio purpurascente profunde 6-fido, segmentis conformi- 

 bus ovato-oblongis. — N. Leon, Mexico, on a high plain near San Juan 

 de la Vaqueria, Gregg. Has been taken for a variety of E. ciliatum, 



