PLATYPHYLLA  Rose, 1903

Series Thyrsiflorae * > see below

Type : Rose 6393, Valley of Mexico, Federal District, July 1901. US 399920.

Etymology : Named for the flat leaves.

Distribution: Mexico (Distrito Federal, Estado de México, Hidalgo).

First Description by Rose in Bulletin of the New York Botanical Garden 3: 7. 1903 :

Acaulescent, glabrous throughout.

Basal leaves in a dense rosette, somewhat rhomboid in outline, thinnish, pale green, acuminate, tipped with a slender cusp, 4 - 5 cm long, about 2 cm broad.

Flowering branch 20 - 30 cm long, bearing small scattered leaves below, flowers 15 - 20, arranged in an equilateral raceme, pedicels 3 mm long or less.

Flowers : Sepals green, thickish, linear, erect, subequal, corolla reddish yellow, petals 9 mm long, tips spreading even in age, tube very short, 1 - 2 mm long.

Cytology : n = 28

Note :

1. * The series Thyrsiflorae is characterised by a determinate inflorescence, this means that the topmost flower is flowering first. 

2. Walther's description (Echeveria, 378, 1972) is not of a plant from the type locality and differs in several respects from the original description by Rose and from the type specimen and is of course useless. Details about Walther's misconception of E. platyphylla can be read on p. 337-338 in Revision of Walther's monograph Echeveria, 1972.