onagracej:. (eveninq rnninosE family.) 59 



2. C. caespitosa, riawworth. Similar to the last; smooth glaucous-grcen; llowering 

 branches G to IJ inches high, with Lroadly triangular-ovate clasping leaves. The most 

 common sixjcies. 



TILL.KA MIXIA/A, Miera., a small herb 1 to 3 inches hiyh with clusters of minute white flow- 

 ere in the axila of the opposite leaves is a common uuder-herb iu moist ijlaces; us is also T. amjuslv- 

 folia, Nutt., only an inch high with solitary flowers. 



Ordeii LYTHRACE^ is represented l)y F^ijthnim alatum, Pursh., var. Uneari/oliumy 

 Gr. An herh a foot or two high with angled stemes and small deep purple C-iK;taled 

 flowers solitary in the axils of the entire sessile leaves. 



Order 24. ONAGRACEiE. 



Herbs (snrubby exotics), with the parts of the flowers in fours, the calyx tube adnate 

 to the ovary, the petals borne on its throat, and the stamens as many or twice as many. 

 Style always single. 



Aquatic stems creeping Jussiaea. 1 



Flowers scarlet, fuchsia-like Zauschneria. 2 



Flowers small, purplish, leaves mostly opposite Epilobium. 3 



Anthers attached near the center CEiiotbera. 4 



Flowers pur^jle, calyx lobes reflexed Godetia. 5 



Petals clawed, calyx-tube short Clarkia. 6 



Petals clawed, calyx-tube filiform Eucharideum. 7 



Flowers purple in leafy spikes Boisduvalia. 



Flowers minute, white, parts in twos Circaea. 9 



1. JUSSIiEA, L. 



The 4 to G herbaceous lobes of the calyx persistent. Petals as many, obovate, spread- 

 ing, yellow. Stamens twice as many. Capsule clavate. 



1. J. repens, L., Var. Califoruica, Wat. Characterized sufiiciently by its 

 creej)ing stems and its solitary axillary flowers nearly an inch in diameter. 



2. ZAUSCHNERIA, Presl. 

 Tube of the calyx much prolonged beyond the globose ovary, colored, the 4-lobed 

 liml) with 8 small deciduous scales, 4 erect and 4 deflexed. Stamens S, exscrted. 



1. Z. Californica, Presl. The scarlet fuchsia-like ilowers over an inch long cannot 

 be mistaken. 



3. EPILOBIUM, L. AVjli.uu -ukrb. 



The seeds tufted with silky h.iir.s in linear 4-sided, 4-valved capsules best mark this 

 diflicult genus. 



