62 PROCEEDINGS OF THE AMERICAN ACADEMY 



less Echinospermum Redowskii. All the species of Pectocarya in the 

 Pro'clromus appear to be forms of P. lateriflora^ except P. penicillata, 

 and even that may pass into forms of the other species. 



III. Synopsis of North American Species of Physalis. 



The North American flora hardly contains a more difficult genus for 

 its size than Physalis. A painstaking study of all the materials at my 

 command leads to the results which are expressed in the followmg 

 synopsis. 



PHYSALIS Linn. 



§ 1. Cham^ PHYSALIS. ChamcEsarachcE* sat similis : folia nonnulla 



* SAKACHA Ruiz & Pav. § Cham^saracha. Calyx fructifer fere lierba- 

 ceus, vix venosus, bacca3 apice tantum nudae arete conformis : semina rugoso- 

 favosa vel puncticulata. Herbae parvulse liurailes e radice perenni ; foliis 

 angustioribus basi in petiolum marginatum cuiieato-attenuatis aut subinteger- 

 rimis aut inciso-pinnatifidis ; pedicellis solitariis rarius geminis filiformibus post 

 anthesin refractis. 



* A basi ramosae, diffusa vel decumbentes : semiiia favosa. 



S. SORDIDA. Withania? sordida Dun. in DC. Prodr. 13, p. 450. Solarium 

 coniodes Moricand ex Dun. 1. c. p. 64. — Tbe two species of tbe Prodromus are 

 founded upon the same (less villous, but more pubescent) form of a common 

 Texano-Mexican species. 



S. CoROXOPUS. Solauum Coronopus Dun. 1. c. p. G4. Withmval Coronopus 

 Torr. Mex. Bound, p. 15-5. A related but more widely diffused species. It ex- 

 tends westward to Arizona (Dr. Palmer, &c.) and Soutiiern Utah, Capt. Bishop. 



S. ACUTiFOLiA Miers in Ann. & Mag. Nat. Hist. 1849, & 111. S. Am. PI. 2, 

 p. 19, described from a fragment in herb. Ilouk. of no. 593 of Coulter's Cali- 

 fornian collection, I have not seen, nor any Californian plant of the kind. 

 Not improbably it was collected in what is now Arizona, and perhaps it is the 

 S. Coronopus; but the description does not well accord ; for the leaves are said 

 to be very acuminate, tlie peduncle somewhat 2-flowered, this and the pedicel 

 together only half an inch long, and anthers as long as the filament. 



* Caules brevissimi conferti, subsimplices : semina laeviuscula, plana. 



S. NANA. Ilaud viscosa, pube brevi adpressa subcinerea, subcaespitoso- 

 depressa ; foliis in caulibus 1-3 uncialibus confertis ovato-lanceolatis seu ob- 

 longo-ovatis acutiusculis subintegerrimis basi rotundata vel cuneata in petiolum 

 longum marginatum decurrentibus ; pedicellis filiformibus petiolis brevioribus ; 

 corolla ut videtur alba cterulescente ultra semipollicem diametro. — California, 

 in the Sierra Nevada, Nevada Co. ? Kellogg (distrib. Kellogg and Harford, 

 no. 719), Sierra Co., J. G. Lemmon. The fruit, recently communicated by the 

 latter, is a rather dry globose berry, a quarter of an inch in diameter, girt and 

 almost enclosed by the hemispherical thin calyx. The affinity to Physalia 

 grandijiora is not remote. 



