WATERLEAF FAMILY 117 



HYDROPHYLLUM Linne 1753 WATERLEAF 

 (Gr. hydro-, water, phyllon, leaf, from the splotches on the leaf) 



PI. 20, fig. 7-8. 



Sepals 5, united, petals 5, white, blue or purple, united into a tubular 

 to bell-shaped corolla, each lobe with a linear appendage within, which 

 extends to the base of the corolla, stamens 5, exserted, filaments hairy 

 below or at the base, ovary 1-celled, hairy, styles united nearly to the 

 summit, capsule 2-valved, seeds 1-4; flowers in terminal or lateral more or 

 less curved cymes ; leaves lobed, pinnately cut or divided ; perennial or 

 biennial. 



1. Edge of leaflets toothed; flower stalks longer 



than leaf stalks H. Fendleri 



2. Edge of leaflets entire ; flower stalks much short- 



er than leaf stalks H. capitdtum 



MACROCALYX Trew 1761 

 (Gr. makros, large, kalyx, cup, calyx) 



Sepals 5, united, much enlarged in fruit, petals 5, white or bluish, 

 united into a bell-shaped or nearly cylindric corolla, usually with 5 minute 

 appendages on the tube within, stamens 5, included, ovary 1-celled, styles 

 united below, ovules 2-4 on each of the placentae; flowers solitary or in 

 racemes; leaves opposite or alternate, pinnately divided or 1-3 pinnate; 

 annual. 

 Stems hairy, 3-10 in. high; leaves pinnately divided; 



flowers white or bluish M. nyctelea 



NAMA Linne 1753 NAMA 

 (Gr. nama, brook, referring to the habitat of some species) 



Sepals 5, distinct, petals 5, white or blue, united into a shallow bell- 

 shaped corolla, stamens 5, on the base of the corolla, ovary 2-celled (rarely 

 3-celled), style 2 (rarely 3) slender, stigma globose, capsule globose or 

 ovoid; flowers in cyme-like clusters or racemes; leaves alternate, entire, 

 sometimes with spines in their axils; perennial. 

 Stem 3-8 in. high, hairy ; leaves linear ; flowers small N. angustifolium 



NEMOPHILA Nuttall 1822 NEMOPHILA 

 (Gr. nemos, wood, philos, loving) 



Sepals 5, united, with a turned-back or spreading appendage in each 

 groove, petals 5, white, blue or variegated, united into a bell-shaped co- 



