WOOTON AND STANDLEY FLORA OF NEW MEXICO. 295 



KEY TO THE SPECIES. 



Stamens much, shorter than the sepals; flowers dull greenish 

 white. 



Petioles not hirsute; hypanthium 2 to 3.5 mm. high 1. H. parvi/olia. 



Petioles hirsute; hypanthium 3 to 5 mm. high. 



Petals spatulate, almost clawless, not exceeding the 



sepals 2. H. novomexkana. 



Petals obovate-spatulate, distinctly clawed, exceeding 



the sepals 3. H. vootoni. 



Stamens longer than the sepals; flowers more or less rose-colored. 

 Hypanthium deeply turbinate, fully twice as long as broad 



and nearly twice as long as the sepals 4. //. leptomeria. 



Hypanthium campanulate, turbinate only at the base, not 

 more than half longer than broad and scarcely sur- 

 passing the sepals. 

 Hypanthium with the sepals 5 mm. T long; plants tall, 



15 to 20 cm. high 5. H. versicolor. 



Hypanthium 4 mm. long or less; plants less than 15 

 cm. high. 

 Hypanthium 4 mm. long; inflorescence secund, 



dense 6. H. pulchella. 



Hypanthium 3 mm. long; inflorescence not secund, 



loose 7. H. nana. 



1. Heuchera parvifolia Nutt.; Torr. & Gray, Fl. N. Amer. 1: 581. 1840. 

 Ihncherajlavescens Rydb. N. Amer. Fl. 22: 114. 1905. 



Type locality: "Blue Mountains of Oregon." 



Range : Oregon and Alberta to Arizona and New Mexico. 



New Mexico: Chama; Stinking Lake; Raton; Santa Fe and Las Vegas mountains; 

 Ma^dalena Mountains; Organ Mountains. Damp woods, in the Transition and Cana- 

 dian zones. 



This species and the next two usually occur in rich soil on fool shady hillsides under 

 trees in the mountains of the State at middle or high elevations. They closely resem- 

 ble each other in general appearance and are never very abundant or conspicuous. 



The type of H.Jlavescens was collected in Santa Fe Canyon (Ifrller 3693). 



2. Heuchera novomexicana Wheelock, Bull. Torrey Club 17: 200. 1890. 



Type locality: Santa Rita, New Mexico. Type collected by Wright (no. L098). 

 Range: Mountains of New Mexico and Arizona. 



New Mexico: Santa Rita; Sawyers Peak; Rio Apache. Transition and Canadian 

 zones. 



3. Heuchera wootoni Rydb. N. Amer. PI. 22: 113. 1905. 



Type locality: Gilmoree Ranch, White Mountains, New Mexico. Type collected 

 by Wooton (no. 283). 



Range: Damp woods, White and Sacramento mountains of New Mexico, in the 

 Transition Zone. 



4. Heuchera leptomeria Greene, Leaflets 1: 112. 1905. 



Tyi'I'. locality: Organ Mountains, New .Mexico. Type collected by Wooton, Sep- 

 tember 17, L893. 

 Rangi Moi I slopes, Organ Mountains of New Mexico, in the Transition Zone 



This pretty plant, grows in crevices of rocks on bold rocky cliffs where there is 

 water from a seep or spring. It.s rootstocks are thick and crowded, bearing numerous 



radiating Leaves and delicate, pale rose-colored flo* i 



