1-8 POLYANDRIA. POLTGYXIA, 



^ Species. 1. Lfijindaivim. 2. poT^'ifJorujn. — Air Airi- 

 rican g-emis with the exception of /, amsatum of Japan 

 and China. 



579. MAGNOLIA. L. 



Calix S-Ieaved. Fetals 6 to 9. Capsules 2- 

 valved, 1 -seeded, imbricated in a cone. Seeil9 

 pendulous, arillate. 



Trees with a bai-k msre or less camplioratcd and aro* 

 matic; leaves alternate, entire and larjife, partly ovate, in 

 some species auriciilate at the base, at first closely sheatl)- 

 ed by the stipu'les; flowers larg-e and terminal, fragrant^ 

 white, yellowish, or brown; seeds scarlet or fulvous. 



Species. 1. M. grar.difora. The most magnificent 

 tree of the southern states, the trunk often presenting- a 

 living- column of 80 or 90 feet elevation, almost unob- 

 structed by branches, and terminated by a spreading- top 

 of the deepest perennial verdure. 2. glaiica. o- macros 

 phylla. This small pyramidal tree produces the larg-cst 

 leaves and flowers of any other North American plant. 

 I'he limits of this interesting- species appear to be ex- 

 tremely local. I first observed it \n Tennessee near th.e 

 banks of Cumberland river, but of very small size.. In 

 the southern states it is not at present knov.n to the m.ost 

 assiduous collectors in anv other spot than a single nar- 

 row tract of about 2 miles in length, 12 miles south-east 

 of Lincolnton (Lincoln coimty, North Carolina); these li- 

 mits I have carefully examined and found them invaria- 

 ble. 4. ?r//;»^fi/r;, (Umbi-elhi-lree.) 5. acvmmata. (Gucum- 

 ber-tree.) Flowers yellowish green. 6. cordata. Flow-, 

 ers vellow; appearing- twice in the }ear in the g-arden of 

 Mr.Lanclreth of Philadelphia. Leaves subcordate-oval, 

 never truly cordate. 7- ainiculata. Leaves rhomboid- 

 ianccolate, auriculate at the base. Considerably allied to 

 ^^T. mncvophifila. ^. pijramidata. Nothing more than a va- 

 riety of the preceding-, having leaves a little broader and 

 shorter. 



A genus of about 15 specres, almost exactly divided 

 between China and the United States; there is also 1 spe- 

 cies in trupical America. 



SSO. LIRIODENDRON. L. (Tulip-tree.) 



Calix 3-leaved. Peials 6. Samar(e stiblan-* 

 peolate, 1 or 2-sceded, imbricated in a cuqc. 



