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HUMILIS   J.N. Rose, 1903

Series Urbiniae


Type : Parry & Palmer 233. Collected 1878 in the region of San Luis Potosí, 22°N, 6000 - 8000 ft. US 48363.


Etymology : Latin adjective meaning low-growing. 


Distribution : Mexico (Hidalgo, Querétaro, San Luis Potosi).



First Description by Rose in Bulletin of the New York Botanical Garden 3:8. 1903.


Acaulescent or with a short woody caudex, glabrous throughout.


Basal leaves in a dense rosette, thickish, lanceolate, acute, 5 - 6 cm long.


Flowering stems about 10 cm long, rather weak, leafy below, inflorescence a few-flowered secund raceme, sometimes paniculately branched, pedicels 2 - 3 mm long, bractless.


Flowers : Sepals lanceolate, very unequal, the longer 4 - 5 mm long, acute, corolla 8 - 9 mm long, its segments united for about one fourth  their length.


Cytology : n = 32


Note :


Walther's concept of E. humilis was based on misidentified plants circulating in California - clearly differing from E. humilis as described by Rose. Therefore his description is of no use at all. This applies also to the respective summary by M. Kimnach in IHSP, 2003.


Photos Mateo Lichtenstein

Photos Werner Krell

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