AGAVACEAE OF ARIZONA
Agave chrysantha Peebles
with possible genes from nearby A. parryi
Engelm.
Gila County: 7.4 miles N of Payson, on
slope above (N of) SR 87, TIO^N R10E Sec-
tion 6, extreme SW1/4, 4850 feet, 1475
meters.
S-facing rocky slope, with Agave parryi
(past flowering), A. chrysantha x A. parryi?,
Opuntia engelmannii, Mimosa biuncifera,
Gutierrezia sarothrae, Juniperus monosperm a,
grasses, Coryphantha vivipara, Quercus turbin-
ella, Nolina microcarpa, Cercocarpus montan-
us. Rosette cloning, compact, leaves some-
what imbricate, green-gray glaucous, stalk
relatively narrow, 18 ft tall, 5-6 cm in
diam., 22 lateral peduncles, hummingbird
visiting flowers. Lower most flowers with
signs of fruit development, ovulary lime
green, tube limegreen-yellow, tepals yellow-
orange, brown-tipped, filaments, anthers,
style, stigma deep orange-yellow, all flowers
dehisced with much pollen overnite, nectar
also produced then, flowers with very
strong, musky, sour-fruity smell; flower
measurements (in mm; after Gentry, 1982):
during anthesis: tl=57, o=28x7, n=4, tu=14.5hx-
12w, tep=12x5(outer), 1 lx4.5(inner), fil ins=6,7
fil=53, anth=5.5+4.5, style=42; tl=48, 0=23x6.5,
n=4.5, tu=13xl 1.5, tep=llx4, 9x3, fil ins=6,8
fil=49, a=5+5, sty=39. Compact rosette, color
and armature of leaves, flower size, neck
suggests introgression with A. parryi.
Wendy Hodgson 6329	9 August 1991
Herbarium of Desert Botanical Garden (DES)
MFW YORK BOTANICAL.GARDEN
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