HYDROPHYLLACE^E. 171 



* * * Corolla greenish-white or cream-colour. Nutlets smooth and 

 shining, mostly white. 



5. L. Offleina'le, L. (COMMON GROMWELL.) Much branched 

 above. Leaves broadly lanceolate, acute. Corolla exceeding 

 the calyx. Roadsides and fields. 



6. L. latifo'lium, Michx. Loosely branched above. 

 Leaves ovate and ovate-lanceolate, mostly taper-pointed. 

 Corolla shorter than the calyx. Borders of woods. 



9. >n oso'Tis. L. FORGET-ME-NOT. 



1. M. palus'tris, Withering. (FORGET-ME-NOT.) Stem 

 ascending from a creeping base, about a foot high, smoothish, 

 loosely branched. Leaves rough-pubescent. Calyx open in 

 fruit, its lobes much shorter than its tube. Corolla sky- 

 blue, with a yellow eye. Pedicels spreading. Wet places. 



2. M. laxa, Lehm. Stem very slender, decumbent, from 

 thread-like subterranean shoots. Pubescence all appressed. 

 Calyx open in front, its lobes as long as its tube. Corolla paler 

 blue. Wet places. 



3. M. arven'sis, Hoffm. Stem erect or ascending, hirsute. 

 Calyx closing in fruit. Corolla blue, rarely white. Pedicels 

 spreading in fruit and longer than the 5-cleft equal calyx. 

 Racemes naked at the base. Fields. 



4. M. verna, Nutt., differs from the last in having a very 

 small white corolla, pedicels erect in fruit, and the racemes 

 leafy at the base. The calyx, also, is unequally 5- toothed 

 and hispid. Dry hills. 



ORDER LXV. HYDROPHYLLA'CE^. (WATERLEAF F.) 



Herbs, with alternate cut-toothed or lobed leaves, and 

 regular pentamerous and pentandrous flowers very much 

 like those of the last Order, but having a 1-celled ovary with 

 the seeds on the walls (parietal). Style 2-cleft. Flowers 

 mostly in 1-sided cymes which uncoil from the apex. 



Synopsis of the Genera. 



1. Hydrophyl'Iuni. Stamens exserted. Calyx unchanged in fruit. 



2. Ellls'ia. Stamens included. Calyx enlarged in fruit. N.W. only. 



