18U PROCEEDINGS OF THE AMERICAN ACADEMY 



Var. ? Palmeri: panicula patentissima ; involucris cylindraceia 

 fere lineam longis bracteas sgepius super'antibus, floribus (albis) dimidio 

 minoribus; bracteolis paucibarbatis. — Arizona, Dr. Palmer, 1869. 

 This appears to be intermediate in character between E. Plumatella 

 and.E. gracile, and is perhaps of a distinct species. The flowers are 

 like the former, except in size, or the segments a trifle narrower and 

 perhaps the inner ones more decidedly longer. 



58. E. intricatum, Benth. Bot. Sulph. p. 46, t. 22. Foliis radicalibus 

 suborbiculatis longe petiolatis viscoso-pubescentibus; panicula divaricato- 

 ramosissima involucrisque minimis brevi-campanulatis paucifloris gla- 

 berrimis ; bracteolis obovato- vel cuneato-oblongis ciliolatis ; perigonii 

 extus parce hirtelli segmentis obovatis conformibus ; ovario glabro. — 

 San Bartolome, Lower California, Hinds. Bentham describes the 

 perigonium as glabrous ; but the scattered hairs on the outside of the 

 perigonium are represented in the plate. 



§ 12. Pedunctjlata, Benth. Flos basi ipsa (lata rariusve acuta) 

 cum pedicello articulatus. Ovarium glabrum. Involucra pauci- 

 pluriflora, 5-dentata, omnia pedicellata, terminalia et alaria, soli- 

 taria : pedicelli sagpius elongati, in ramis 2 - 3-chotomis pedun- 

 culi aphylli parvi-bracteoli scapiformis laxe paniculati. Embryo 

 praicedentium. Herba? plerumque annual, foliis latis radicalibus vel 

 in caule brevi sgepissime rotundatis, inflorescentia cum involucris 

 nunquam pubescente, floribus plerumque albis seu albidis. 



* Panicula divaricato-ramosissima glandulis claviformibus obsita : 

 involucra pauciflora. Annua, scaposa, humilia. Ob pedicellos 

 perbreves sp. sequentis Virgatis approximanda. 



59. E. brachypodum, n. sp. Foliis rotundatis laxe albo-lanatis ; 

 panicula divaricatissima fere humifusa rigida ; pedicellis involucro glan- 

 duloso 8-12-floro baud longioribus ; bracteolis sublinearibus hirsuto- 

 ciliatis ; perigonii glabri segmentis exterioribus cordato-ovatis obtusis- 

 simis, interioribus dimidio minoribus ovatis longe obtuseque acuminatis. 

 — Western borders of California, in alkaline sands around Kingston 

 Spring, llemy, in herb. Mus. Paris. Branches of the panicle stouter 

 and more rigid than in the next ; the involucre and also the accres- 

 cent perigonium a line long. 



60. E. glandulosum, Nutt. ex Benth. in DC. Foliis rotundatis 

 viridibus parce pilosis ; panicula tenui effusa ; pedicellis capillaribus 

 involucro eglanduloso perpaucirioro multoties longioribus ; perigonii 



