LYTHKACEiE 69 



2. S. Anglica, Hudson. Leaf-blade cuneate: petals mncb exceeding the sepal*. 



LYTHRACEJ; 



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



Petals 4: capsule striate under microscope, splitting into 3 or 4 valves. 9 



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 „, 3 



1. AMKANIA, Linnaeus. 

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



2. BOIAIiA, Kcehne. 

 I. H. ramosior, Koeh. Capsule not bursting irregularly, 



S. IiYTHBTnyi, LinniBUB. 



1. Ii. hysBopifolia, L. Petals very small: stamens usually 4 to 6^ indndedL 



2. L. album, HBE. Calyx 3 or 4 lines long. 



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



HAL0RAGE2E. 



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 ; 2 



1. HrPPTTEIS, Linnaeus. 

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



2, MYRIOPHYIjLUM, Linufflus. 



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



2. M. hippurioides, Kutt. Stamens 4: petals white, obovate: toothed bracts 3 to 6 

 lines long. Both species aquatic. 



ONAGRAOEJ). 



^ Calyx divided to,the ovary, lobes persistent: aquatic or creepijtg marsh herbs: solitary fimntrt 



in axils of entire leaves. 

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



