64 PROCEEDINGS OF THE AMERICAN ACADEMY 



4. P. OBSCURA Miclix. (exel. ^). Divaricato-ramosissima ; foliis 

 late deltoideo-ovatis nunc subcordatis breviter acumiuatis inaequaliter 

 dentatis ; corolla flavida maculis fusco-purpureis ; calyce alte 5-tido, 

 lobis lanceolato-subulatis, fructifero ovate- pyramidato iajvigato 5-cari- 

 nato. — I have this only from Key West, Blodgett, and E. Texas, 

 E. Hall, no. 503 ; also from Cuba, C Wright, no. 3635, referred in his 

 ''Fl. Cubana" to P. pubescens. I suspect it may be P. Brasiliensis of 

 Sendtner, Fl. Bi-as. ; if so, his " corolla unciali " has a fraction left out. 

 This in our sjjecies is smaller, or at least shortei', than in P. angulata. 



5. P. ANGULATA Linn. P^'oliis sajpius ovato-oblongis e basi late 

 cuneata pi. m. laciniato-dentatis ; pedicellis tililbrmibus ; corolla viri- 

 dula immaculata ; calyce lobis triangulatis tubo brevioribus, fructifero 

 10-angulato angulis 5 primariis carinatis ovato-pyramidato demum 

 fructu fere repleto globoso-ovato. 



Var. LiNKiANA. Foliis dentibus lanceolato-subulatis elongatis ma- 

 gis laciniatis; calycis profundius fissi lobis angustioribus. — P. Linkiana 

 Nees in Linntea, 6, p. 471. 



6. P. ^QUATA Jacq. f. Eel. 2, t. 137. Ramosissima, erecta, hinc 

 inde pilosula ; foliis plerisque parvulis ovatis oblongisve repandis vel 

 sinuato-dentatis ; pedicellis calyce etiam florifero brevioribus ; corolla 

 lutea fauce maculata ; calyce lobis latis brevibus ovato-triangularibus, 

 fructifero demum globoso-ovato lO-nervio pollicari vel minora. — P. 

 PhiladeJplnca var. minor Dun. in DC. 1. c. ex char. & hab. — Along 

 the southern borders of the United States, from Texas, to California: 

 also W. Indian. 



++ ■*-+ MediocrifloriE : corolla lin. 7-12 diametro : calyx fructifer ulti'a- 

 pollicaris bacca rubella vel pui'purea distentus, ore aperto. 



7. P. Philadelphfca Lam. P. chenopodi folia Willd., non Lam. 

 P. atriplicifolia Jacq. Fragm. t. 85, ex Nees. 



•f— •!— Annufe vel perennes, graveolentes, pilis viscidis vel glandulosis 

 omnino simplicibus patentissimis villoste vel pubescentes: calyx 

 fructus ovato-pyramidatus carinato-angulatus, baccam viridem vel 

 lutescentem laxe vestiens : folia ovata vel cordata. 



•1-1- Annuoe : antherae ssepissime violacese : pedicelli plerumque breves. 



8. P. PUBESCENS Linn. — P. pruinosa Linn.? (Flowering speci- 

 men in herb. Linn, with long pedicels, and anthers said to be yellow, 

 but corolla only half an inch in diameter; so probably not no. 10, but 

 same as Dill. Elth. t. 9, referred here in Liun. Syst., and seemingly 

 not from N. America.) P. Barhadensis Jacq. Misc. & Ic. Rar. t. 39. 



