. IL] 



MAGNOLIA FAMILY. 



49 



2. LIRIODENDRON L,. Sp. PL 535. 1753. 



A large forest tree. Leaves alternate, truncate or broadly emarginate, 4-6-lobed or 

 rarely entire, recurved on the petiole in the laterally compressed obtuse buds. Stipules 

 united at the base. Flowers large, slightly fragrant. Sepals 3, petaloid, reflexed. Petals 6, 

 connivent. Anthers linear, extrorse. Carpels spiked on the elongated receptacle, 2-ovuled, 

 samaroid, i-2-seeded; seeds pendulous by a short slender funiculus at maturity. [Greek, a 

 tree bearing lilies.] 



One or possibly two species, natives of eastern North 

 America and China. 



i. Liriodendron Tulipifera L,. Tulip-tree. 

 White- wood. (Fig. 1542.) 



Liriodendron Tiilipifera 1,. Sp. PI. 535. 1753. 



A magnificent tree 6o-i9o high with diverging 

 curved branches, the trunk 4-i2 in diameter. 

 Leaves glabrous, very broadly ovate or nearly orbi- 

 cular in outline, truncate or broadly notched at the 

 apex, truncate, rounded or cordate at the base, 3 / -6 / 

 long with 2 apical and 2-4 basal lobes with rounded 

 sinuses, or occasionally entire; flowers about 2' high, 

 erect, greenish-yellow, orange-colored within; petals 

 obovate, obtuse, about equalling the reflexed sepals; 

 cone of fruit dry, oblong, acute, 3' long. 



In woods, Vermont and Rhode Island to Florida, west to 

 Michigan and Arkansas. May-June. Wood soft ; yellow- 

 ish or brownish; sap-wood nearly white. Weight per 

 cubic foot 26 Ibs. Called also Yellow Poplar. 



Family 25. ANONACEAE DC. Syst. i: 463. 1818. 



CUSTARD-APPLE FAMILY. 



Trees or shrubs, generally aromatic, with alternate entire leaves. Stipules 

 none. Sepals 3 (rarely 2), valvate or rarely imbricate. Petals about 6, arranged 

 in 2 series. Stamens co ; anthers adnate, extrorse. Carpels co ( separate or co- 

 herent, mainly fleshy in fruit. Seeds large, anatropous; embryo minute; endo- 

 sperm copious, wrinkled. 



About 46 genera and 550 species, mostly in the tropics, a few in the temperate zones. 



i. ASIMINA Adans. Fam. PL 2: 365. 1763. 



Small trees, or shrubs, with alternate leaves and lateral or axillary nodding flowers. 

 Buds naked. Sepals 3, ovate, valvate. Petals 6, arranged in 2 series, imbricated in the bud, 

 those of the outer series the larger when mature. Receptacle subglobose. Stamens and car- 

 pels 3-15. Style oblong, stigmatic along the inner side; ovules numerous, in 2 rows. Fruit, 

 large fleshy oblong berries. Seeds large, flat, horizontally placed, enclosed in fleshy arils. 

 [From the aboriginal name Assimin.] 



A genus of about 7 species, natives of eastern and southeastern North America. 



i. Asimina triloba (L/.) Dunal. North American Papa w. (Fig. 1543.) 



Annona triloba L. Sp. PI. 537. 1753. 

 Asimina triloba Dunal, Mon. Anon. 83. 1817. 



A tree io-45 high, the trunk 5 / -io / in diameter. 

 Shoots and young leaves dark-pubescent, becoming 

 glabrous at maturity; leaves obovate, acute, 6 / -i2 / 

 long, cuneate or rounded at the base; petioles 4 // - 

 6" long; flowers axillary, on shoots of the preced- 

 ing year, appearing with the leaves, I'-iJ^' in di- 

 ameter, dark purple; sepals ovate, 4 // -6 // long, 

 densely dark-pubescent, as are the short peduncles; 

 outer petals spreading, nearly orbicular, slightly ex- 

 ceeding the ovate inner ones; stamens numerous, 

 short; fruit a fleshy berry, 3 / -7 / long, i / -2 / thick, 

 sweet and edible when ripe, pendulous, several 

 together on a thick peduncle. 



Along streams, southwestern Ontario and western 

 New York, Pennsylvania and western New Jersey to 

 Michigan, south to Florida and Texas. March-April, 

 the fruit mature in October. Wood light, soft, weak, 

 greenish-yellow. Weight per cubic foot 24 Ibs. 



