CLASS XIII. ORDER XIH. ^3 



Hydropeltis. Calyx 6-leaved somewhat con- 

 verging : corol o : capsules oblong, somewhat 

 fleshy, numerous, 2-celled, 1 or 2-seeded. 26. 61— 

 fiurfiurcuy (water-shield) leaves oval, peltate, float- 

 ing. %. p. 



Hepatic A Calyx 3-leaved : petals 6 to 9 : seeds 

 naked. 26. &\—trilobay (liverleaf) calyx-leaves 

 broad-ovate obtuse, leaves 3-lobed obtuse. %. w-r. 

 Var. — acuta, calyx-leaves acute, leaves 3 to 5-lob- 

 ed acute. Perhaps this variety ought to constitute 

 a new species. The specimens found by professor 

 Dewey,near Williams* College, are much firmer in 

 their texture than the common kindj and differ ma- 

 terially in their general habit. 



Annona. Calyx 3-leaved : corol 6-petalled : 

 stigma obtuse : berries 1 -celled, many 'jeeded, 

 roundish with a scaly bark. 52. 76 — glabra, (custard 

 apple) leaves lance-ovate, fruit conic glabrous, e. 



LiRioDENDRON. Calyx 3-leaved : corol 6 or 9- 

 petalled, liliaceous : seeds in a samara, imbricate 

 on a strobile-like spike. 52. 75 — tuUfiifera^ (tulip 

 tree, or white wood) leaves 3-lobed, with the middle 

 lobe abrupt. \ . w. 



Magnolia. Calyx 3-leaved : corol 6 to 9-pe- 

 talled : capsules numerous, imbricate on a stro- 

 bile-like spike, 2 valved : seeds berried, pendulous. 

 52. 75-~-glaucay (magnolia, or beaver tree) leaves 

 oval obtuse glaucous beneath, petals obovate. % .w. 



Nelumbium. Calyx 4 or 5-leaved : petals 5 or 

 more : nuts half immersed in a truncate receptacle, 

 and crowned with the permanent style. 26. 61 — /w- 

 tsum^ (nelumba) leaves peltate, peduncles and pe- 

 tioles glabrous. %. y. 



Ranunculus. Calyx 5-leaved: petals 5, with 

 claws and a nectariferous pore or scale on the inside 

 of each : seeds numerous. 26. 61 — abortivus^ (crow- 

 foot) radical leaves cordate crenate, stem-leaves 



