Addisonia 23 



(Plate 92; 



ECHEVERIA NODULOSA 

 Red-margined Echeveria 



Native of southern Mexico 



Family Crassui^ac^a^ Orpine Family 



Cotyledon nodulosa Baker, in Saund. Ref. Bot. pi. 56. 1869, 

 Echeveria nodulosa Otto, Hamb. Gartenz. 29: 8. 1873. 



A perennial with stems one to two feet long in the wild state, 

 often in cultivation flowering when only a few inches high, naked 

 below, crowned by an open or sometimes a dense rosette of leaves. 

 The flowering stems, one or more, are erect and leafy below. The 

 leaves are obovate to spatulate, two to three inches long, gradually 

 becoming smaller on the flowering stems, red on the margin. The 

 inflorescence is an equilateral raceme of four to eight flowers, the 

 pedicels short, the longest ones not quite half an inch long. The 

 five sepals are spreading. The corolla is half an inch long, and 

 strongly five-angled. 



This plant was originally described by J. G. Baker from speci- 

 mens supposed to have come from Mexico, and grown by W. Wilson 

 Saunders of Hillfield, Reigate, England; it was also illustrated by 

 Saunders. 



Until 1899 the original description and illustration represented 

 our entire knowledge of this plant. In that year J. N. Rose re- 

 discovered the plant on Mount Alban, near Oaxaca City, Mexico, 

 and brought back to Washington living specimens which have been 

 distributed widely. It has frequently flowered, both in Washington 

 and in the New York Botanical Garden. In 1906 C. Conzatti of 

 Oaxaca, Mexico, also collected living specimens and it was from 

 these, which flowered in the New York Botanical Garden, July 24, 

 1911, that our accompanying illustration was made. 



The sixty or more species of Echeveria are divided into two 

 groups. The group to which E. nodulosa belongs contains about 

 one third of the species and has axillary flowers arranged in equi- 

 lateral racemes or slender interrupted spikes. The other group has 

 flowers arranged in simple secund terminal racemes or sometimes 



compounded and in panicles. 



J. N. Rose. 



