656 LABIATJS3. (MINT FAMILY.) 



26. L.EUCAS, R. Br. Leucas. 



Calyx tubular or campanulate, striate, straight or incurved at tip, 

 mouth equal or oblique, 8-10-toothed. Corolla-tube included, hood 

 erect, lower lip trifid, the middle lobe larger. Stamens ascending under 

 hood, the anthers in pairs, nearly 2-celled ; cells diverging, confluent. 

 Upper lobe of style very short. Nutlets triquetrous, obtuse — Differs 

 from Ballota by short upper lobe of style, and by shape of calyx. 



Lr. iiiflata, Bth. 5 Woolly-canescent. Lower leaves short-petioled, 

 obovate-cuneate, obtuse, 3-4-toothed at tip ; the floral sessile, cordate- 

 orbicular, as long as flowers or longer. Whorls 6-10-flowered, numer- 

 ous, distinct ; bracts obsolete ; calyx white-hirsute, ovate-inflated, with 

 contracted mouth, and triangular-lanceolate, acuminate teeth — Be- 

 tween Suez and Gaza. 



27. PHL.OM1S, L. Jerusalem-Sage. 



Calyx tubular, striate, often sulcate, with equal, truncate mouth, 

 and acute, obtuse, or retuse teeth. Corolla-tube included, hairy ringed 

 within, with compressed, arched hood, and spreading, trifid lower 

 lip. Stamens ascending under hood, the upper filaments often spurred 

 at base. Anthers in pairs, with divaricating, confluent cells. Nut- 

 lets 3-angled — Herbs or shrubs, generally woolly or fleecy. 



* Stems herbaceous, sometimes shriihby at lase. Bracts 0, or Jew, not spiny. 



t Leaves, or at least the radical, cordate. Co7vlla yelloio. 

 1 P. Nissolii, 3 Orientalis, 3 brevilabris, 4 cordata, 5 capitata. 

 ^ \ Leaves cuneate at lase or tajjering to a 2yetiole. Corolla yellow. 

 6 P. Armeniaca, 7 linearis. 



* * Shriibs. Bracts numerous, long. Corolla yellow. 

 t Bracts not spinescent, lanceolate to linear -siibulate. 



8 P. aurea. 



1 1 Bracts leafy, ovate to ciineate-obovate, the i?mer cuspidate, more or less 



oNique. 



9 P. platystegia. 



1 1 1 Bracts rigid, sululate, spinescent. 



10 P. parvifolia, 11 chrysophylla, 12 viscosa. 



* * * Stems herhaceous lelow. Bracts numerous, subulate, pricMy-^'tointed. 



Flowers pinTc. 



13 P. Shepardi, 14 rigida, 15 Herba-Venti. 



1. P. !Xis§olii, L. 11 .5 to 1, densely flocculent-pannous, j^^anz- 

 cled above. Leaves ovate to ovate-oblong and oblong, the lower peti- 

 oled, .1 to .2 long, the cauline oblong, cuneate at base, the floral a lit- 

 tle longer than calyces. Whorls 6-4-flowered; calyx .012 long in flow- 

 er, with ovate-triangular teeth .002 long; longer Jllaments spurred at lase 

 — May to August — Lebanon, Ccelesyria, Antilebanon, and the eastern 

 tableland from Moab northward ; Amanus ; lower Jordan Valley. 



Var. lcptorracho§, Boiss. Indument less flocculent. Leaves 

 often narrower. 



