OF ARTS AND SCIENCES. 321 



17. P. PARVIFLORA Pursh ; Gray, Man. ed. 5, p. oG9. Polemo- 

 nium diibium Linn. Eutoca pannjlora R. Br. Cosmanthus parvi- 

 Jlorus A. DC. Phacelia piisilla Buckley, ex char. 



Yar. HiRSUTA. Forma vegetior, hirsutior. — P. hirsnta Nutt. iu 

 Ti-ans. Am. Phil. Soc. 1. c. 



* * Herba Mexicana diffusa, "radice perenni," foliis plerisqiie pin- 

 natisectis, omnibus petiolatis. 



(17".) P. PIMPINELLOIDES. — Eutoca pimpinelloides & hrevifoUa 

 Spreng. Syst. 1, p. oG9. E. Mexicana, Benth. Hydrophyll. 1. c. E. 

 Andrieuxii & Cosmanthus Mexicaniis A. DC. 1. c. (Coll. Max. Bour- 

 geau, no. 493.) 



* * * Ilerbae Texanas, annuas, foliis caulinis incisis vix pinnatifidis, 

 floribus majoribus (G-12 lin. latis) : j^lacentiB 7-9-ovulatjB. 



18. P. PATULiFLORA. — Eutoca patulijiora Engelm. «fe Gray, PI. 

 Lindh. 1, p. 45. 



19. P. STRicTiFLORA. — Eutoca strictijlora Engelm. & Gray, I.e. 

 The seeds of this species, besides the minute reticulation or jiit- 

 ting, are coarsely and obscurely rugose at maturity, in this respect 

 approaching the Microgenetes section. 



§4. GYMNOBYTIIUS. Placentce dilatatcT3 multiovulatfe : semina 

 parum descendentia, testa foveolata : corolla rotato-campanulata, 

 intus cum filamentis subtequilongis i^rorsus inappendiculata : sty- 

 lus bipartitus : capsula ovata, apice cuspidato-acuminata. Herbce 

 ' annufc, Californica}, glandiiloso-viscidissimie, foliis ovatis dentatis, 

 racemis solitariis vel geminis laxifloris. — Cosmanthus § Gymnoby- 

 thus A. DC. 



20. P. visciDA Torr. Bot. Mex. Bound, p. 143. — Eutoca viscida 

 Benth. Cosmanthus viscidus A. DC. — Var. albiflora. Eutoca 

 albijlora Nutt. PL Gamb. p. 158. 



21. P. GRANDiFLORA. — Eutoca ffrandijiora Benth. \. c. E. speciosa 

 Nutt. 1. c. Cosmanthus grandljlorus A. DC. 



§ 5. WHITLAVIA. Placentae multiovulatae, raro pauciovulatfe : sem- 

 ina praecedentium : corolla plicis destituta : sed filamenta (capillaria 

 exserta) ima basi intus squamula parva truncata vel emarginata 

 adnata appendiculata ! Herbae annute, Californicae, facie prgeceden- 

 tium, at minus glandulosse, jjedicellis petiolisque longioribus, stylo 

 parum semibifldo. 



* Corolla cylindraceo-campanulata, speciosa : ovula numerosissima 

 placentaeque Gymnobythi. — Whitlavia Harvey. 



VOL. X. (x. S. II.) 21 



