668 PLANTAGINEJS. (PLANTAIN FAMILY.) 



I Corolla glcibrous. 



§ Perennials or xjerennants. 



2 P. lanceolata, 3 albicans, 4 cyliudrica. 



§ § Annuals. 



5 P. amplexicaulis, 8 Lcefliugii, 7 Cretica, 8 ovata, 9 Hausskuechtii, 

 10 phseopis, 11 notata. 



X Corolla-tube glabrous, lobes hirsute. Annuals. 



13 P. Lagopus, 13 ciliata. 



1 1 1 Capsule 2-celled, cells sometimes bilocellate. Corolla-tube hairy, lobes 

 glabrous. Flowers ajyiwessecl to axis. 



14 P. Coronopus, 15 maritima, 16 carinata, 



* * Stem leafy, leai>es opposite. Corolla glabrous, the tube wrinkled trans- 



verely. 



t Perennials. 



17 P. Arabica. 



1 1 Annuals. 



18 P. Psyllium, 19 stricta, 20ph8eostoma, 21 arenaria, 22squarrosa. 



1, P. major, L. Mesdseh. Waraq-Sabim. Lisdn-el-Kelb. Lisdii-el- 

 Uamal. If Stemless. Leaves petioled, ovate to ovate-oblong, 3-7 nerved, 

 .1 to .2 or more long, entire or irregularly repand, glabrous or spar- 

 ingly puberulent. Scapes ascending, as long as leaf or longer ; spike 

 linear-cylindrical, .1 to .25 long; bracts ovate, cancave, keeled, scarious- 

 margined, as long as calyx ; calyx-lobes equal, ovate, obtuse ; corolla- 

 lobes ovate, rather obtuse ; capsule ovate — Spring and summer -— Moist' 

 places; common. 



SJ, P. lanceolata, L. If Stemless, glabrescent or hairy. Leaves 

 oblong-lanceolate to lanceolate, .05 to .25 or more long, acute, taper- 

 ing to a petiole, 3-5-nerved. Scapes angled, much longer than leaves. 

 Spikes ovate-oblong to cylindrical, .02 to .06 long; bracts ovate', acute 

 or acuminate, glabrous ; rfnterior lobes of calyx glabrous, usually united 

 into one, two-nerved, the posterior usually hairy along keel ; corolla- 

 lobes ovate, acuminate; capsule oblong — Spring and summer — Fields 

 and pastures; common, even to alpine regions. 



Var. g-eaiMina, 

 glabrous or hairy, lanceolate, iDctioled. 



Var. alti§§iina, Boiss. Usually glabrous; scapes .5 to .6 long; 

 leaves broader. 



Var. capitata, Presl. Spikes globular to ovate, then oblong. 



3. P. albicans, L. If Root-stock woody, branching. Leaves 

 and scapes silky -jieecy, silvery. Leaves resetted at tip of branches of 

 root-stock, linear-spathulate to lanceolate-spathulate, acuminate, taper- 

 ing to along petiole, 3-nerved, flat or wavy. Scapes iere^e, .15 to .3 long, 

 much longer than leaves; spikes cylindrical, .02 to .06 long, sometimes 

 interrupted at base ; flowers twice as long as in last ; bracts cancave with a 

 hroad, herbaceous, glabrous or velvety strip along the middle of the outer sur- 

 faccy and broad, scarious, mllous-ciliate margin and tip; calyx-lobes 



