864 SCROPHULARIACEiE. 



mediate segment ligulate and truncate, much longer, closely in- 

 curved. Stamens 2. Filaments bifid, lateral fork antheriferous. 

 Style bifid. Capsule 1 -celled, 2-valved, many-seeded. 

 H. micranthemoides NuLt. Herpestis micrantha Pursh, (excl. syn.) 

 Inundated banks. Penn. toVirg. Aug., Sept. (D—^'em creeping, dichoto- 

 mous. Leaves opposite, crowded, sessile, obscurely 3-nerved. Flowers wliite, 

 minute, solitary, axillary. Hemianihus. 



Suborder II.— RHINANTHIDEiE. 



Inflorescence entirely centripetal or compound. Estivation 

 irregularly imbricated, one of the lateral segments being gen- 

 erally external, while the two upper are always internal. 



I. SiBTHORPEiE. 



12. LIMO SELLA. Linn— Mudwovt. 

 (From the Latin limus, mud ; in allusion to its place of growth.) 

 Calyx 5-cleft. Corolla shortly campanulate, 5-cleft, equal. 

 Stamens 4, approximating by pairs. Capsule 2-valved, sub- 

 bilocular, many- seeded. 



L. subulata Ives : leaves linear, very narrow, scarcely dilated at the apex ; 

 scape 1-flowered, as long as the leaves. L. tenuifolia Nutt. 

 Muddy shores. N. Y. and Penn. Aug. %. — Pla7it rooting and creeping in 



the mud. Leaves about an inch long. Flowers bluish-white, minute, on pedun- 

 cles a little longer than the leaves. Common Mudwort. 



II. Veronice^. 



13. VERONICA. i.m7i.- Speedwell. 



(Name of doubtful origin.) 



Calyx 4- rarely 5-parted. Corolla rotate^ unequally 4-lobed; 



the lower segment narrower. Stamens 2, inserted into the 



tube, exserted. Capsule 2-celled, mostly emarginate or obtuse. 



Seeds few. 



* Spikes or racemes terminal. 



1. F. serpyllifolia Linn. : stem ascending; leaves broadly ovate or ellip- 

 tic, slightly crenate, smocfthish ; raceme elongated, many-flowered ; cap- 

 sule inversely reniform, as long as the style. 



Meadows, &c. Throughout the U. S. May — Aug. %. — Stem procurabeni, 

 3—8 inches long, sometimes creeping. Flowers small, pale blue, in a long spike 

 or raceme. Introduced from Europe. Thyme-leaved Speedwell. 



** Spikes or racemes axillary. 



2. V. scutellata Linn. : stem slender, nearly erect ; leaves linear or lance- 

 linear, sessile, somewhat teethed ; racemes lateral, alternate ; pedicels 

 divaricate in fruit. 



