486 ONAGRACEiE. Epilobium. 



Tribe I. ONAGRE^. 



Petals as many (sometimes wanting in Ludwlgia) and stamens 

 twice as many (except in Eucharidium and Ludwigia) as the lobes 

 of the calyx (which are mostly 4), regular. Pollen connected by 

 cobweb. like threads. Ovules indefinite, rarely few and definite. 

 Fruit capsular, or rarely dry and indehiscent. — Herbs or slightly 

 shrubby plants. 



Subtribe 1. Epilobine^;. — Calyx deciduous from the summit of the 

 ovary after flowering. Seeds comose. — Lower leaves often opposite. 



1. ZAUSCHNERIA. PresU rel. Hank. 2. p. 28, t. 52. 



Tube of the calyx much produced beyond the ovary, from which it finally 

 separates by an articulation, colored, infundibuliform, globose-inflated at the 

 base ; the segments spreading, much shorter than the tube. Petals 4, obcor- 

 date, or rather deeply 2-cleft, rather longer than the lobes of the calyx. 

 Stamens 8, slightly exserted ; the alternate ones a little shorter : filaments 

 filiform : anthers linear-oblong, fixed by the middle. Ovary 4-celled : style 

 filiform, erect, exserted : stigma cajiitate, 4-lobed. Capsule linear, short, 

 4-sided, imperfectly 4-celled, 4-valved. Seeds numerous, with a coma or 

 tuft of long hairs at the chalaza. — A much branched low or decumbent 

 canescently pubescent somewhat shrubby plant, with crowded lanceolate 

 entire or denticulate sessile leaves, the lower ones opposite, those of the 

 branches alternate. Flowers in loose spikes terminating the branches, large, 

 erect-spreading, with short foliaceous bracts : calyx and petals bright red. 



A remarkable genus, with flowers resembling a Fuchsia, but with the fruit 

 of an Epilobium. We find the ovary 4-celled, not 1-celled as described by Presl. 



' Z. Californica (Presl I 1. c.) — Hook. 4* Am.! bat. Beechey, p. 140 Sf 

 supjd. p. 340. Z. Californica & Mexicana, Presl, I. c. 



a. leaves lanceolate-linear, narrow, canescently pubescent. 



p. leaves rather broader and, with the branches, villous-canescent ; flowers 

 rather smaller ; the calyx dull red. 



Monterey and St. Francisco, California, Menzies .' Hanke ! Douglas ! 

 &fc. — This genus is first noticed in Koenig & Sims' Annals of Botany (vol. 1. 

 p. 543), but not named or described. 



2. EPILOBIUM. Linn.; G^srtn. fr. t. 31. 



Tube of the calyx not prolonged beyond the ovary ; the limb deeply 

 4-cleft, campanulate or infundibuliform, or 4-parted to the base witli the 

 segments spreading, deciduous. Petals 4, spreading or rather erect. Stamens 

 8, the 4 alternate often a little shorter : anthers elliptical or roundish, fixed 

 near the middle. Stigma clavate (the lobes connivent), or with 4 spreading 



