WOOTON AND STANDLEY FLOEA OF NEW MEXICO. 557 



1. Clinopodium vulgare L. Sp. PL 587. 1753. 



Melissa clinopodium Benth. Labiat. Gen. Sp. 393. 1834. 



Calamintha clinopodium Benth. in DC. Prodr. 12: 233. 1848. 



Type locality: "Habitat in rupestribus Europae, Canadac." 



Range: British America to North Carolina and New Mexico; also in Europe. 



New Mexico: Gallinas Canyon; West Fork of the Gila; White and Sacramento 

 mountains; Brazos Canyon. In woods, in the Transition Zone. 



12. HEDEOMA Pers. Pennyroyal. 



Annual or perennial herbs, 40 cm. high or mostly less, with small entire or toothed 

 leaves and small flowers in axillary clusters among the reduced upper leaves; calyx 

 tubular, 2-lipped, the 3 upper teeth shorter than the 2 lower; corolla narrowly tubular 

 to tubular- funnelform, purple or paler, 2-lipped, the upper lip entire or emarginate, 

 the lower 3-lobed; stamens 2, sometimes with 2 sterile filaments; nutlets smooth. 



KEY TO THE SPECIES. 



Upper calyx lobes triangular-lanceolate, noticeably broader than 

 the lower ones; calyx sparingly hispidulous; flowers con- 

 spicuous, with gaping corolla; leaves entire. 

 Stems rather stout; leaves elliptic-oblong, obtuse, spreading, 



not conspicuously veined 1 . 11 . pdlcherrima. 



Stems slender, wiry; leaves narrowly lanceolate, erect or as- 

 cending, very conspicuously veined 2. H. hyssopifolia. 



Upper calyx lobes shorter but scarcely narrower than the lower. 

 subulate, villous-hirsute; flowers small, the corolla tube 

 narrow; leaves entire or toothed. 

 At least some of the leaves toothed. 



Leaves mostly entire, only a few with occasional incon- 

 spicuous teeth; upper leaves lanceolate 3. H. oblongifolia. 



Leaves all conspicuously toothed, ovate. 



Corolla conspicuously long-tubular; leaves not pli- 

 cate, their veins inconspicuous 4. //. pulchella. 



Corolla very short, scarcely exceeding the calyx; 



leaves plicate, with very conspicuous veins.. . 5. //. plicata. 

 All the leaves entire. 



Leaves shorter than the subtended calyces 6. II. nana. 



Leaves longer than the subtended calyces. j 



Calyx 5 to 6 nun. long, the corolla but little longer, 



barely exserted 7. //. ciliata. 



( alyx 7 to 8 mm. long, the corolla almost twice as long, 



much exserted 8. // lata. 



1. Hedeoma pulcherrima Woot. & Standi. Contr. U. S. Nat. Serb. 16: L68. L913. 

 Ttpb locality: White Mountains, Lincoln County, New Mexico 



Range: White and Sacramento mountains of New Mexico, in the Transition Zone. 



2. Hedeoma hyssopifolia A. Gray, Proc. Amer. Acad. 11: 96. L876. 

 Ttpb i ocau i i : Mount ( rraham, Arizona. 



Range: Mountains of Arizona and New Mexico ami adjacent Mexico 

 Xi.'.v Mexico: Mogollorj Mountains; Pinos Altos Mountains; San Luis Mountains. 

 Upper Sonoran Zone. 



