Agave delamateri

W. C. Hodgson & Slauson

Haseltonia 3: 133, figs. 1, 3–5. 1995.

Common names: Tonto Basin agave
Treatment appears in FNA Volume 26. Treatment on page 460. Mentioned on page 443, 446.

Plants acaulescent, freely suckering; rosettes solitary to cespitose, 9–10 × 9–10 dm, open. Leaves erect or erect-ascending, 50–63 (–73) × 7.5–9 cm; blade glaucous-gray to bluish, cross-zoned, lanceolate or oblanceolate, rigid, adaxially concave, abaxially convex; margins straight or repand, armed, teeth single, well defined, 3.5–5 mm, 1–3 cm apart, interstitial teeth (3–) 6–12, mostly along distal 2/3 of margins; apex conspicuously incurved, spine brownish gray, slender, 2.8–3.5 (–4.9) cm. Scape 4.5–6 m. Inflorescences broadly paniculate, not bulbiferous, open; bracts persistent, triangular, 1–5.5 cm; lateral branches 12–17, horizontal, comprising distal 3/5–5/8 of inflorescence, longer than 10 cm. Flowers 14–20 per cluster, erect, 4.7–6.7 (–7) cm; perianth cream, tinged with light green, tube not shallow, campanulate, 11–16 × 11–16 mm, limb lobes persistent and often leathery during and after anthesis, spreading, unequal, 9–18 mm, apex flushed with maroon; stamens long-exserted; filaments inserted at 1 level ca. mid perianth-tube, erect, yellow, 3–5.3 cm, apex flushed with maroon; anthers yellow, 11–20 mm; ovary 2.1–2.9 cm, neck slightly constricted, 1–3.5 mm. Capsules not seen. Seeds unknown.


Phenology: Flowering early summer.
Habitat: Gravelly places with desert scrub, rarely in chaparral or pinyon-juniper woodlands
Elevation: 700–1600 m

Discussion

Of conservation concern.

Agave delamateri is known only from about 90 individual clones and always in association with Mogollon or Salado settlement features. The plant is probably a cultivar derived from A. palmeri or a closely related taxon by pre-Columbian people. Agave delamateri hybridizes with A. chrysantha, acting as a pollen donor.

Selected References

None.

Lower Taxa

None.

"broadened" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Agave delamateri"
longitudinal +
1.1 cm11 mm <br />0.011 m <br /> (2 cm20 mm <br />0.02 m <br />) +
width +  and length +
flushed with maroon +
glandular-pubescent +  and glandular +
papillate +
sharp-pointed +
James L. Reveal +  and Wendy C. Hodgson +
W. C. Hodgson & Slauson +
armed +  and filiferous +
cross-zoned +, glaucous-gray +  and bluish +
convex +, concave +, oblanceolate +  and lanceolate +
short to long +
thick +  and thin +
persistent +
reflexed +, erect +  and ascending +
triangular +
umbel-like +
Tonto Basin agave +
fibrous-rooted +
700–1600 m +
pubescent +  and glabrous +
3 cm30 mm <br />0.03 m <br /> (5.3 cm53 mm <br />0.053 m <br />) +
recurved +  and erect +
loculicidal +
oblong +  and ovoid +
Gravelly places with desert scrub, rarely in chaparral or pinyon-juniper woodlands +
open +  and not bulbiferous +
3/5 +  and 5/8 +
10 cm100 mm <br />0.1 m <br /> (?) +
pseudopetiolate +, sessile +  and simple +
63 cm630 mm <br />0.63 m <br /> (73 cm730 mm <br />0.73 m <br />) +
evergreen +
50cm;63cm +
7.5 cm75 mm <br />0.075 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
dentate +, serrulate +  and entire +
Fleshy (?) +, Firm (?) +  and Rigid (?) +
constricted +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 0.35 cm3.5 mm <br />0.0035 m <br /> (?) +
cylindrical +, ovoid +  and 3-angled +
2.1 cm21 mm <br />0.021 m <br /> (?) +  and 2.9 cm29 mm <br />0.029 m <br /> (?) +
succulent +
not +  and articulate +
umbel-like +
semisucculent +
Flowering early summer. +
solitary +  and cespitose +
450 cm4,500 mm <br />4.5 m <br /> (600 cm6,000 mm <br />6 m <br />) +
globose +, obovoid +  and flattened +
3.5 cm35 mm <br />0.035 m <br /> (4.9 cm49 mm <br />0.049 m <br />) +
brownish gray +
2.8 cm28 mm <br />0.028 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
semiwoody +
long-exserted +
branched +, , +  and unbranched +
aboveground +
3 +  and 1 +
papillate +
exserted +  and included +
subulate +
Agave delamateri +
species +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not shallow +
1.1 cm11 mm <br />0.011 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
campanulate +
11mm;16mm +
plant +  and suckering +
polycarpic +  and monocarpic +
small;gigantic +
petal-like +