PRIMULACEAE 



497 



PRIMULACEAE 



Lobes or segments of the corolla erect or spreading, not reflexed. 

 Lobes of the corolla imbricated, at least in the bud. 

 Ovary wholly superior. 

 Ovary adnate to the calyx; marsh herbs. 

 Lobes of the corolla convolute or valvate. 

 Capsule longitudinally dehiscent. 



Corolla rotate or rarely short-funnelform. 

 Stem leafy throughout; flowers yellow. 



Staminoidia 5; each corolla-lobe curved 



around its stamen. 

 Staminoidia none; corolla lobes convolute. 

 Staminoidia 5, tooth-like; flowers in axillary 

 spike-like racemes or heads. 

 Leaves whorled at the top of the stem; flowers 

 white. 

 Corolla none; flowers minute, solitary in the axils. 

 Capsule circumscissle; flowers axillary. 

 Segments of the corolla reflexed; plants scapose. 



1. Hottonia. 



2. Samolus. 



3. Steironema. 



4. Lysimachia. 



5. Naumburgia. 



6. Trientalis. 



7. Glaux. 



8. Anagali.is. 



9. dodecatheon. 



1. Hottonia Boerh. 

 1. H. inflata Ell. '.In shallow stagnant ponds: N. H. and Mass. 

 to Cent. N. Y., Fla. and La. 



Local in the coastal region of our area, and in Bergen and 

 Hudson counties, N. J. 



2. Samolus [Tourn.] L. 



1. S. floribundus H. B. K. In swamps and brooks: N. B. to Fla., 



B. Col., Tex. and Cal. 



Throughout the coastal part of our range, rare or wanting inland 

 except along the river valleys. 



3. Steironema Raf. 



Leaves ovate to lanceolate; capsule longer than the calyx. I. 5. ciliatum. 



Leaves lanceolate, oblong or linear; capsule nearly as long as the calyx. 2. 5. lanceolatum. 



i. S. ciliatum (L.) Raf. In moist thickets: N. S. to B. Col., Ga., 

 Ala., Kan. and Ariz. 



Throughout the region except in the pine-barrens, there wanting, 

 and rare in the region to the east and south of the barrens. 



2. S. lanceolatum (Walt.) A. Gray. (S. hybridum (Michx.) Raf.) 



In moist soil: Me. to Minn., Fla., La. and Ariz. 



Distribution similar to the preceding but unknown in the 

 Bronx. 



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