ANONACE^. 



SILVA OF NORTH AAIEllICA. 



23 



ASIMINA TRILOBA. 



Pap aw. 



Flowers solitary ; styles distinct, introrsely stigmatic ; ovules numer 



ous. Leav 



es 



ample, membranaceous. 



Asimina triloba, Dunal, Mq7i. Anon. 83. — De Candolle, 

 ^Sy^;. i. 479 ; Prodr. i. 87. — Elliott, Sk. ii. 42. — Guim- 

 pel, Otto & Hayne, Abhild. Holz. ^^, t. 53. — Hayne, 

 Dendr. Fl. 118. — Don, Gen. Syst. i. 91. — Loudon, Arh. 

 Brit. i. 293, f . 39. — Gray, Geii. 111. i. t. 26, 27. — Dar- 

 lington, Fl. Cestr. ed. 3,10. — Chapman, i^/. 15. — Curtis, 

 Geolog. Surv. N. Car. 1860, iii. 94. — Bot. 3Iag. t. 5854. — 

 Koch, Dendr. ii. 383. — Sargent, Forest Trees N. Am. 

 10th Census U. S. ix. 23. — Lloyd, Drugs and Med. N. 

 Am. ii. 49, t. 33, f. 120-123. —Watson & Coulter, Gray's 

 Man. ed. 6, 50. 



Anona triloba, Linnosus, Spec. 537. — ■ Du Roi, Harhk. Baum. 

 i. 59. — Marshall, Arbust. Am. 10. — Lamarck, Diet, ii, 

 125.— Walter, Fl. Car. 158. — Willdenow, Spec. ii. 

 1267. — Nouveau DnJio.mel, ii. 83, t. 25. — Desfontaines, 



Hist. Arh. ii. 21. — Michaux f. Hist. Arh. Am. iii. 161, t. 



9. — Sehkuhr, Ilandh. ii. 95, t. 149. 

 Anona pendula, Salisbury, Prodr. 380. 

 Anona palustris, Abbot, Insects of Georgia, i. t. 4 (not 



LinnEeus). 



Orchidocarpum arietinum, Michanx, Fl. Bor.-Avi. i. 329. 



Porcelia triloba, Persoon, Syn. ii. 95.— Pursh, Fl. Am. 

 Sept. ii. 383. — Rafinesque, Fl. Ludovic. 92. — Nuttall, 

 Gen. ii. 19. — Poiret, Lam. Diet. Suppl. iv. 529. — Audu- 

 bon, Birds, t. 2 ; ed. 8vo, iii. t. 147. 



Uvaria triloba, Torrey & Gray, FL JS^. Am. I 45. — Tor- 

 rey, Fl. iV. Y. i. 30. — Caniel, Ann. Mm. Firenze, 1864, 

 9, t. 1, f . 1-7. — Baillon, Hist. PL {. 193, f . 220-228 ; 

 Diet. i. 290, f. 



A. campaniflora, Spach, Hist. Veg. vii. 528. 



A slinib or low tree, rising sometimes under favorable conditions to a height of thirty-fivo or forty 

 feet/ with a straight trunk, rarely exceecUng a foot in diameter, and slender spreading branches. The 

 bark of the trunk, rarely more than an eighth of an inch thick on full-grown individuals, has a dark 

 brown surface marked with large ash-colored blotches ; it is covered with small wart-like excrescences, 

 and divided by numerous shallow reticulate depressions. The inner bark is tough, fibrous, and separates 

 easily into thin layers. The bark of the branchlets is light brown tinged with red, and plainly marked 

 by longitudinal, parallel or reticulate; narrow shallow grooves. The winter-buds are acuminate, flattened 

 on the side next the stem, an eighth of an inch long, and covered thickly with rusty brown hairs. The 

 leaves, which are glabrous, light green on the upper and pale on the lower surface, are ob ovate-lanceo- 

 late, ten or twelve inches long, and four or five inches broad, sharply pointed, and gradually and regu- 

 larly contracted at the base into a stout petiole half to three quarters of an inch long, and strengthened 

 by a prominent midrib and primary veins. They are covered on the lower surface when they first 

 appear, as are the petioles and young shoots, with a short rusty brown caducous tomentum, reduced on 

 the upper surface of the young leaves to a few scattered hairs. The flowers, which are nearly two 

 inches across when fully grown, appear at the extreme south in March, and open at the north m May 

 and June. They are borne on stout club-shaped peduncles an inch or an inch and a half long, covered 

 with long scattered rusty bro^ra hairs. The sepals are ovate, acuminate, pale green, and densely pubes- 

 cent on the outer surface. The petals are green when they first unfold, and are covered with short 

 appressed hairs ; they gradually turn brown, and at maturity are deep vinous red and conspicuously 

 reticulate-vcnulose ; those of the outer row are broadly ovate, rounded or pointed at the apex, reflexed 

 at maturity above the middle, and are then two or three times longer than the sepals ; those of the inner 

 row are pointed, erect, the concave base glandular, nectariferous, and marked by a broad band of a 

 lighter color.2 The fruit, which is attached obHquely to the enlarged torus, is oblong, nearly cylmdncal, 



^ Ridgway, Proc. U. S. Nat. Mus. 18S2, 60. m considerable quantities fron. the glandular surface of the petal. 



= Baillon iAdansonia, vi. 253) suggests that the nectar secreted of Asimina serves to hold the pollen wh.eh falls fron. the anthers 



