HYDROPHYIjLACE*;. 171 



^^* Corolla fjreenish-whilii or cream-coloitr. Nutlets smooth and 

 shining, mostly white. 



5. L. Offieina'le, L. (Common Geomweli,.) 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 tapei^pointed. 

 Corolla shorter than the calyx. — Borders of woods. 



9. MYOSO'TIS, L. FoEGET-ME-NOT. 



1. M. palus'trls. Withering. (Fobget-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 slcy- 

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



2. M. laxa, Lehra. Stem very slender, decumheni, from 

 thread-like subterranean shoots. Pabescence 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-oleft equal calyx. 

 Sacemes naked at the Jose. ^Fields. 



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

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

 leafy at the base. The calyx, also, is unsq^ually 5-toothed 

 and hispid. — Dry hills. 



OrdbeLXV. HYDROPHYLLA'CEjE. (Wateeleai P.) 



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

 regular pentamerous and pentandrous flowers very much 

 like those of the last Order, 5 ui having a 1-ceUed ovary with 

 the seeds on the walls {parietal). Style 2-cleft. piowers 

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



Synopsis of tlie Cicncrn. 



1. llyilropliyrinni. Stamens exsertcd. Calyx unchanged in fruit. 



2. lillls'la. Stamens incluclecl. Calyx enlarged in fruit.— N.W. only. 



