Magnolia tripetala

(Linnaeus) Linnaeus

Syst. Nat. ed. 10, 2: 1082. 1759.

Common names: Umbrella-tree
Endemic
Basionym: Magnolia virginiana var. (d) Linnaeus Sp. Pl. 1: 536. 1753
Synonyms: Kobus tripetala (Linnaeus) P. Parmentier Magnolia frondosa Salisbury Magnolia umbrella Desrousseaux Magnolia umbrella var. tripetala (Linnaeus) P.Parmentier
Treatment appears in FNA Volume 3.

Trees, deciduous, often multitrunked, to 15 m. Bark gray, smooth. Pith homogeneous. Twigs and foliar buds glabrous. Leaves crowded in terminal whorl-like clusters; stipules (4-) 6.6-9.4 (-10) × 2.6-3.7 cm, abaxially red glandular, sparsely pilose. Leaf-blade elliptic-oblong to narrowly obovate, or oblanceolate, (10-) 26-57 (-70) × (7.2-) 10-30 cm, thin, broadest near middle, base cuneate to long-tapered, apex very short to long-acuminate or abruptly acute, rarely apiculate; surfaces abaxially densely pilose, especially on midvein, adaxially green, glabrous. Flowers malodorous, 5.5-11 cm across; spathaceous bracts 2, abaxially glandular; tepals spreading, creamy white, outermost whorl sepaloid, reflexed, greenish; stamens 81-103 (-115), 8-17 mm; filaments purple; pistils (45-) 53-66 (-73). Follicetums cylindric to ovoid-cylindric, 6-10 × 2-3.5 cm; follicles long-beaked, glabrous. Seeds lenticular to nearly ovoid, 9-12 mm, aril deep pink to red. 2n=38.


Phenology: Flowering spring.
Habitat: Rich woods and ravines, mainly in uplands, rarely coastal plain
Elevation: 0-1065m

Distribution

V3 455-distribution-map.gif

Ala., Ark., Fla., Ga., Ind., Ky., Md., Miss., N.C., Ohio, Okla., Pa., S.C., Tenn., Va., W.Va.

Discussion

In Virginia Magnolia tripetala is a disjunct in the coastal plain.

The malodorous flowers of Magnolia tripetala are uniquely associated with this species. The tree is occasionally cultivated. Both filiform and flagelliform trichomes occur on the leaves. Sometimes cylindric trichomes also occur.

The largest known tree of Magnolia tripetala, 15.2m in height with a trunk diameter of 87 cm, is recorded from Bucks County, Pennsylvania (American Forestry Association 1994).

Selected References

None.

Lower Taxa

None.

"lengthofanthers" is not declared as a valid unit of measurement for this property.

... more about "Magnolia tripetala"
latrorse +  and introrse +
acute +  and long-acuminate +
pink +  and red +
Frederick G. Meyer +
(Linnaeus) Linnaeus +
cuneate +  and long-tapered +
Magnolia virginiana var. (d) +
Umbrella-tree +
Ala. +, Ark. +, Fla. +, Ga. +, Ind. +, Ky. +, Md. +, Miss. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Va. +  and W.Va. +
0-1065m +
purple +  and white +
malodorous +
5.5 cm55 mm <br />0.055 m <br /> (11 cm110 mm <br />0.11 m <br />) +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
cylindric +  and ovoid-cylindric +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
coalescent +
Rich woods and ravines, mainly in uplands, rarely coastal plain +
57 cm570 mm <br />0.57 m <br /> (70 cm700 mm <br />0.7 m <br />) +
7.2 cm72 mm <br />0.072 m <br /> (10 cm100 mm <br />0.1 m <br />) +
26 cm260 mm <br />0.26 m <br /> (57 cm570 mm <br />0.57 m <br />) +
elliptic-oblong +  and narrowly obovate or oblanceolate +
broadest;thin;10cm;30cm +
petiolate +  and simple +
Flowering spring. +
sessile +  and stalked +
concrescent +  and free +
diaphragmed +
homogeneous +
Syst. Nat. ed. +
indehiscent +
persistent +
annular +
lenticular;nearly ovoid +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
hypogynous +
0.8 cm8 mm <br />0.008 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
decurrent +
9.4 cm94 mm <br />0.094 m <br /> (10 cm100 mm <br />0.1 m <br />) +
adnate +  and free +
6.6 cm66 mm <br />0.066 m <br /> (9.4 cm94 mm <br />0.094 m <br />) +
2.6 cm26 mm <br />0.026 m <br /> (3.7 cm37 mm <br />0.037 m <br />) +
glabrous;pilose +
Kobus tripetala +, Magnolia frondosa +, Magnolia umbrella +  and Magnolia umbrella var. tripetala +
Magnolia tripetala +
Magnolia +
species +
creamy white +
deciduous +
elongate +