LYTHRACEiB 59 



2. D. Anglica, liadson. Leaf -blade cuneate: jjetalB much ezoeedli ^e tepaliu 



LYTHKACEiE. 



Calyx slightly 4-angled, short: petals none: capsule globular ,., 1 



Petals 4: capsule striate under microscope, splitting into 3 or 4 valyes. j) 



Calyx cylindrical, striate, 4 to 7 teeth with smaller ones between: petals 4 to 7 (usually 

 6): stamens as many or twice as many: capsule 2-celled ^, 8 



1. AMMANIA, Linn»ua. 

 1. A. latifolia, L. Stems square: leaves opposite, eared at base, slender. 



2. EOT ALA, Kcehne. 

 1. R. ramoaior, Keek. Capsule not bursting irregularly. 



3. LYTHRTJM, JLum»u». 



1. Lk hyssopifolia, L. Petals very small: stamens usually 4 to 6» inoluded. 



2. Ii. album, HBK. Calyx 3 or 4 hues long. 



3. Ii. Califomicuni, Watson. Calyx 6 to 9 lines long: rose-purple petals longer 



HALOKAGE^. 



Leaves linear or broader in whorls of 4 to 12 : flowers sessile, axillary ••..,.,. 1 



Leaves in whorls of 3 or 4, mostly pinnate, segments filiform: flowers axillary ,, 3 



1. HIPPT7B.IS, Linmeus. 

 1. H. vulgaris, L. Style filiform, stamen I: calyx globular, limb entire. La ponds. 



2. MYRIOPHYLLUM, Linmeus. 



1. M. spicatum; L. Stamens 8: flowers epicate: petals ovate, greenish. 



2. M. hippurioides, Nutt. Stamens 4: petals white, obovate: toothed bracts 3 to 5 

 lines long. Both species aquatic. 



onagracej:. 



^ Calyx divided to t/t^ ovary, lobes persistent: aquatic or creeping manh herbs: solitary fiowen 



in axils of eidirt leaves. 

 Petals 4 to 6, yellow: stamens 8 to 12: leaves alternate 1 



