Villadia

ARISTATA Moran, 1990

Distribution : Mexico (Coahuila, Nuevo León, Tamaulipas, San Luis Potosi); oak and conifer forests, dwarf forests, open alpine meadows, granite or mostly limestone, 2200 - 3800 m.

 

 

Description (according to IHSP, 2003) :

 

Herbs; roots thickened, 2 - 3 (-5) mm in diameter.

 

Stems deciduous after flowering, mostly unbranched, 10 - 30 cm.

 

Leaves ascending, oblong-Ianceolate to oblong-obspatulate, acute, spurred, papillose near tip, 8 – 16 (-27) x 2 - 3.5 mm, greyish-green.

 

Inflorescences dense spikes, racemes or thyrses, 3 - 20 cm, branches short and clustered, lower to middle branches with up to 2 flowers, pedicels 1 mm.

 

Flowers : Sepals broadly lanceolate, acute, hardly spurred, papillose, somewhat unequal, 3.5 - 4.5 (-5) x 1.5 – 2 mm, corolla ellipsoid to inconspicuously globose, 4 – 5 (-7) x 3 - 4 (near mouth 1 - 2) mm, petals dorsally keeled, 3.1 - 3.7 (-4.5) mm, greenish below, white to rose or lavender above, tube 0.6 - 0.9 (-1.7) mm, lobes erect, ± cucullate, rounded, 2.7 - 3.2 x 1 mm, margin irregularly dentate, keel extending into a subapical 1 - 1.4 mm long awn, filaments whitish.

 

Cytology : n = 10

 

Distinguished from all other species by the long aristate petal tips. According to the protologue, the closest relationships exist to V. cucullata




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