Echeveria alpina Walther, 1935
Type : Heilprin & Baker, Mt. Ixtaccihuatl, 14'200 feet, Estado de Mexico, Mexico.
First Description by Walther in Cactus and Succulent Journal US 7:70. 1935 :
Leaves numerous, thinnish, oblong-spatulate, to 7,3 cm long, 3 cm wide, truncate, mucronate, glaucous, margin not reddish.
Flowering stem to 12 cm tall, erect, bracts few, broad, obovate-cuneate, to 15 mm long, raceme simple, with 10 or more flowers, pedicels 3 - 5 (-9) mm long.
Flowers : Sepals subequal, patent, 7 - 9 (-10) mm long, corolla 15 mm long, 9 mm in diameter at base, reddish-orange, glaucous, petals erect.
Echeveria alpina is a very big plant - rosette diameter to 15 cm - and "except for the lack of any purplish tinge and the simple inflorescence, E. alpina might well be mistaken for E. 'Imbricata' " (E. Walther). As the name implies it hails from much higher elevations, the type locality is on Mt. Ixtaccihuatl at 4275 m. It may not be in cultivation. Plants labelled as E. alpina are misidentified throughout. Also the ISI 418 offering was completely misidentified.