274 Mr. Bentham's Review of the Order q/" Hydrophyllese. 



Folia pinnatim dissecta, inferiora opposita. Pedunculi inferiores oppositifolii, 

 superiores in racemo laxo unilaterali simplici dispositi. 



1. E. Nyctelea {Linn. Gen. 97-), petiolis exappendiculatis, foliis pinnatifidis, 



lobis subincisis, calycibus fructiferis valde auctis. 

 Calycis fructiferi segmenta ovato-lanceolata, acuta, foliacea, semipoUicaria. 



{v. s. c.) 

 I only know this plant from specimens gathered in European botanic gar- 

 dens. It is said to grow on the Potowmac in Virginia, and on the Missouri. 



2. E. AMBiGUA {Niitt. Gen. i. 118.), "decumbens, ramosa ; caule glabro sub- 



glauco, foliis hirsutis lyrato-pinnatifidis subsessilibus, segmentis sublan- 

 ceolatis angulato-dentatis lobatisve, racemis oppositifoliis lateralibus ter- 

 minalibusque, corollis parvis calyce vix longioribus, segmentis emargi- 

 natis. 



" Common in alluvial soils on the banks of the Missouri." 



I am wholly unacquainted with this plant. 



3. E. MEMBRANACEA, glabcrrima, petiolis exappendiculatis, foliis pinnatifidis, 



segmentis integerrimis, calycibus vix auctis. 

 Folia tenuia, lobis divaricatis lato-lanceolatis obtusis. Flores parvi, pedicel- 

 lati, laxe racemosi. Corolla alba. {v. s. sp.) 



From Mr. Douglas's Californian collection. 



4. E. CHRYSANTHEMiFOLiA, hispido-scabra, petiolis basi auriculato-dilatatis, foliis 



subbipinnatifidis, lobis inciso-dentatis obtusis, calycibus fructiferis parum 

 auctis. — Flores E. membranacece. Corollae squamae dentatge. {v. s. sp.) 



From California. Douglas. 



III. Nemophila. Barton. 



Calycis sinus dentibus reflexis appendiculati. Squamae corollince 10, breves, 

 vel nuUse. Stamina corolla subbreviora. Placentce maximse, dorso liberse, 

 ovarium implentes, 2 — 12-ovuIatae. 



Herbse annuse, diffusse, fragiles. Folia inferiora opposita, omnia pinnatifida. 

 Pedunculi nunc axillares, uniflori, nunc pauci ad apices ramorum in race- 

 mis brevibus dispositi. 



