OF ARTS AND SCIENCES : JANUARY 26, 1870. 169 



revoluta. Radicula in cotyledonibus orbiculatis dimidio brevioribus 

 accumbenti-incurva. 



35. E. parvifolium, Smitb in Pees Cycl. Primum arenoso-lana- 

 tum ; foliis ovatis seu ovato-lanceolatis undulatis basi abrupta vel obtusa 

 pi. m. petiolatis subtus tomentosis ; ramis floridis seu pedunculis 2-3- 

 cbotomis ; perigoniis glabris. — California, near tbe coast ; by all col- 

 lectors, from Hrenke and Menzies downwards. Var. crassifolium, 

 Benth. PI. Hartw. no. 1940, is a very condensed form, from the sea- 

 coast at Monterey. 



36. E. fasciculatum, Benth. Eriog. Aut glabrum aut tomen- 

 tulosum ; foliis oblongo-linearibus seu lineari-spathulatis stepius maxime 

 revolutis, majoribus pi. m. in petiolum brevem sensim attenuatis ; 

 pedunculo nudo gracili sajpissime umbellatim diviso 3 - 6-radiato. — 

 California from Monterey southward. 



Var. a. (E. rosmarinifolium, Nutt. PL Gamb. p. 164. E. fas- 

 ciculatum, Benth. Eriog. p. 410.) Preeter folia subtus maxime revo- 

 luta tenuiter albo-tomentosa fere glaberrimum ; involucri 5-rcarinati 

 dentibus 5 triangularibus paullo exsertis ; perigoniis glabris. 



Var. /3. (E. rosmarinifolium /3. foliolosum, Nutt. 1. c. E. fasci- 

 culatum, Benth. in DC. Prodr. p. p.) Plus minus pilosulo-pubescens ; 

 involucro magis truncato (dentibus ultra sinus tenui-membranaceos 

 haud productis) perigoniisque extus leviter pubescentibus. 



Var. y. polifolium. (E. polifolium, Benth. in DC. 1. c.) Pube 

 tenui undique cinereum vel canescens ; foliis minus revolutis, pagina 

 superiore nunc glabrescente ; pedunculo vulgo longiore ; involucro 

 etc. var. /3. — From Monterey to San Diego and the Gila. The 

 forms a and y are seemingly very different, but they run together com- 

 pletely. The teeth, or firm portions at the orifice of the involucre, do 

 not project beyond the scarious-membranaceous sinuses except in the 

 first, and in this sometimes very slightly. 



§ 10. Cortmbosa, Benth. Flos basi haud producta ipsa cum 

 pedicello articulatus ; perigonium 6-partitum, extus glabrum, seg- 

 mentis interioribus stepissime pi. m. minoribus. Ovarium glabrum 

 vel glabellum. Involucra pluriflora, 5 - 6-dentata, cymosa, nempe 

 pedunculo nudoapice umbellatim diviso, radiis repitite 2-3-chotome 

 vel umbellatim in cymam corymbiformem subdivisis, ultimis seu 

 pedicellis brevibus aut (pnesertim alaribus) nullis. Embryo in- 

 curvus, cotyledonibus orbiculatis radiculae multo longiori pi. m. ac- 



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