PLAKTAGINACE^. (PLANTAIN FAMILY.) 103 



1. VERBENA, L. 



Calyx 5-tootbed, one tooth often shorter. Corolla salver-form, the limb unequally 

 5-cleft. Stamens included, the upper pair sometimes sterile. Stigma unequally lobed. 

 Ovary 4-celled. — Herbs with small flowers, ours about 2 lines in diameter. 



1. V. officinalis, L. Some of the lower leaves pinnatifid; spikes mostly solitary, 

 filiform; corolla purple or lilac, 2 or more lines in diameter. 



2. V. hastata, L. Stouter and taller, 3 to 6 ft. high; leaves serrate or incised, the 

 lower hastate-3-lobed; spikes panicled, densely flowered; corolla bluCj 2 lines in diameter. 



3. V. prostrata, R. Br. Soft hirsute, difl'use, a foot high; villous spikes long; 

 corolla violet or blue. 



Order 47. PLANTAGINACE-ffi. 



Stemless herbs with flowers in spikes, the 4-cleft regular corolla dry and scarious. 



1. PLANTAGO, L. Plantain. 



Flowers in spikes or heads, bracteate. Calyx of 4 persistent sepals free from the ovary. 

 Stamens 2 or 4 on the corolla alternate with its lobes, anthers versatile. Style filiform, 

 bearded above. — Stemless herbs with nerved or ribbed radical leaves and naked scapes of 

 small greenish flowers. 



* Flowers with 4 stamens. 



1. P. major, L. ^lostly smooth; leaves ovate or broadly oblong, abruptly con- 

 *;racted into a channeled petiole, 5-7-ribbed; spike long and slender; capsule 7-16-seeded. 



2. P. hirtella, HBK. Leaves smooth, rather fleshy, oblanceolate to obovate, 3-7- 

 ribbed, tapering into a narrow base or wing-margined petiole; scape 1 to 3 ft. high; 

 flowers large. 



3. P. lanceolata, L. Mostly hairy; leaves lanceolate, 3-5-ribbed; scape deeply 

 grooved. 



4. P. maritima, L. Leaves linear, fleshy; scapes usually short. 



5. P. Patagonica, Jacq. Leaves linear to fibform, thin, usually silky-woolly. — Dry 

 gi'ound. 



* * Flowers with 2 stamens. 



6. P. Bigelovii Gr. Leaves linear; smaU. — Salt marshes. 



