EPILOBIAOE*. 129 



Okdbr xli. EPILOBIACE/E. 



Herbs, often with, hard shrubby-looking stems shedding a thin papery 

 outer bark. Leaves simple, usually alternate, entire, toothed or pinna- 

 tifid. Flowers axillary to the leaves, or in bracted or naked racemes or 

 spikes, rarely panicled, usually 4-merous. Calyx-tube partly or wholly 

 adherent to the ovary; lobes valvate in bud. Petals borne on the throat 

 of the calyx-tubes or at the sinuses of the lobes, convolute in bud. 

 Stamens 2 — 8. Style single; stigma capitate or 4-lobed; ovary 2 or 4- 

 celled. Seeds naked or appendaged; albumen none. 



Free portion of the calyx-tube deciduous from the ovary; 



Seeds with a coma \ fl - sma11 ' P^P^n or white Epilobium 1 



<fl. large, scarlet Zausohneria 2 



Seeds 



fl. yellow (Enothera 



not fl. purple or < Calyx-lobes reflexedj petols8e8slleGoDETIA 4 



■J < ' unguiculate.CLARKiA 5 



I rose-color ( Calyx-lobes ascending Boisduvalia 6 



Only the segments of the calyx free from the ovary, 



these persistent jA. apetalous Isnardia 7 



< petals yellow Jtssi.ea 8 



1. EPILOBIUM, C. Oesner (Wimow-Hehb). Tube of calyx little 

 prolonged beyond the ovary; limb deeply 4-cleft, campanulate or funnel- 

 form, or 4-parted to the base with the lobes spreading, deciduous. Petals 

 4, spreading or erect, often emarginate or bifid, purplish or white. Sta- 

 mens 8, the 4 alternate ones shorter; anthers elliptical or roundish, fixed 

 near the middle. Stigma oblong, clavate, or with 4 spreading or revolute 

 lobes. Capsule mostly linear, 4-sided, 4-celled, 4-valved. Seeds numer- 

 ous, ascending; the summit bearing a tuft of long white hairs. 



* Annuals, with terete stems; leaves alternate (except the lowest). 



1. E. in i nut urn, Lindl. Diffusely branched from the base, the mostly 

 decumbent branches }{ — 1 '*• l° n gi puberulent: leaves ovate-lanceolate 

 or lanceolate, entire or repand-denticulate, %—% m - long: fl. solitary in 

 all the axils; petals obcordate, white or with a tinge of rose: 4 long 

 stamens equalling the style; stigma clavate, the lobes at length expanded 

 and fimbriate: capsule pedicellate, about 1 in. long: seeds rather few, 

 smooth.— In the Coast Eange, on dry hills. April— June. 



2. E. paniculatum, Nutt. Threat, slenderly paniculate-branched above, 

 1 — 10 ft. high, from wholly glabrous to minutely and densely glandular- 

 pubescent: leaves narrowly lanceolate or linear, obscurely serrulate, 

 1 — 2 in. long, with smaller ones fascicled in the axils, the floral reduced 

 to subulate bracts: corolla cruciform; the rose-colored petals quadrate- 

 oblong, abruptly and often deeply notched, rose-purple and veiny, 1—2 

 lines long, rotate-spreading: capsule pedicellate, 1 in. long, attenuate at 

 each end, often arcuate: seeds minutely papillose.— Dry ground; com- 

 mon. July— Nov. 



