Small trees, up to 3 m tall; twigs densely cinereous-strigulose to velutinose; petiole 2 - 4 
mm long, densely pubescent, as twigs; leaf blades 6.3 - 11.9 cm long, 3.8 - 4.8 cm wide, ovate- 
lanceolate or ovate, apex acute, base cordate, amplexicaulous, cinereous-strigulose to 
glabrescent above, densely cinereous-velutinous below, leaf surface concealed, pinninerved or 
subtriplinerved, midvein slightly marked above, raised above, secondary veins 3 - 4 pairs, flat 
above, raised below, tertiary veins inconspicuous, domatia absent (?); inflorescence up to 13 cm 
long, axillary to leaves, peduncle 3 - 8 cm long, velutinose, flower pedicel 6 - 13 mm long, 
velutinose; flowers urceolate, tepals 1 - 2 mm long, ca. 1 mm wide, ovate-lanceolate, densely 
canescent outside, sriceous inside (?), stamens of whorls I & II ca. 1.5 mm long, filaments 
glabrous ad and abaxially (?), sporangia four, stamens of whorl III ca. 1.5 mm long, filaments 
long sericeous adaxially, glabrous (?) abaxially, glands ca. 0.5 mm long, glabrous, staminodes ca. 
0.8 mm long, filament short, head ca. 0.5 mm long, deltoid to ovate, glabrous adaxially, long 
sericeous abaxially, hypanthium ca. 1 mm (?) deep, pistil ca. 2 mm long, glabrous, ovary ca. | 
mm long; fruit 8 - 10 mm long, 6 - 8 mm wide, ellipsoid, pedicel 10 - 15 mm long, tepals 
persistent. 
Flowers and fruits in March. Growing (very likely) in oak-pine forest, at an altitude of 
850 - 950 m. This species is known only from the type locality. 
Although Téllez-Valdés & Villasefior (1993) suggested (by leaf shape and insertion) a 
relationship with C. amplexicaule, C. kruseanum has a totally different type of indument from 
that species. Instead, I consider C. Aruseanum related to C. velvetii, a sympatric species with the 
same type of indument. Still it is not certain that these two species are really different from each 
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