CORNER. 153 



valvate. Stamens 4, alternate with the petals, inserted with 

 them ; anthers 2-celIed. Ovary closely cohering with the 

 tube of the calyx, 2-celled ; ovules pendulous, solitary ; style 

 filiform ; stigma simple. Fruit fleshy, crowned by the re- 

 mains of the calyx, 2-celled, (or rarely 1-celled by abortion,) 

 endocarp thick and bony. Seeds solitary, pendulous ; albu- 

 men fleshy ; embryo straight ; radicle superior, shorter than 

 the oblong cotyledons. 



Trees, shrubs or herbs. Leaves opposite, rarely alternate. 



1. CORNUS. Linn. 



Calyx with the tube adnate to the ovary, the limb very 

 small and 4-toothed. Petals 4, oblong. ' Stamens 4. Style 

 1. Drupe with a 2-celled nut. Tctandria. Monogynia. 



* Flowers capitate, surrounded by an involucre. 



1. C. canadensis Linn. : herbaceous ; lower leaves opposite, small ; 

 upper ones verticillate, veined ; leaves of the involucre ovate, acumi- 

 nate, white ; flowers numerous, very small, in a terminal head ; drupe 

 globose. 



HAB. Woods. Arc. Amer. to Car. May, June. 24!. Stem 

 6 inches high. Involucre white. Flowers reddish- white. Drupe 

 red. 



2. C. florida Linn. : arborescent ; leaves opposite, ovate-acuminate, 

 entire, ribbed ; leaves of the involucre 4, large, obcordate, nerved, 

 white ; flowers in terminal heads. 



HAB. Woods. Can. to Car. May, June. T>. A tree 15 20 

 feet high. Flowers greenish-yellow. Involucre very large, 

 white. Drupe scarlet. Medicinal. Big. Med. Bot. ii. 73. 



*'' Dog Wood, 



** Flowers naked, in cymes. 

 t Leaves opposite. 



3. C. circinata L'Herit. : branches warty ; leaves on short petioles, 

 broad-oval, acuminate, white-downy beneath; cymes crowded, depress- 

 ed; drupe globose. C. tomentulosa Mich. C. rugosaLam. 



HAB. Banks of streams. Can. to Virg. June, July. ^>. 

 Shrub 6 8 feet high. Leaves broad, waved on the edges. Flow- 

 ers white. Drupe blue. 



4. C. sericea L'Herit. : branches expanded ; leaves ovate, acuminate, 

 the under surface clothed with a silky ferruginous down ; cymes de- 

 pressed, woolly. C. lanuginosaMich.C. alba Walt. 



HAB. Banks of streams. Can. to Car. June. J>. Shrub 5 10 

 feet high. leaves oblong, sometimes slightly cordate. Drupe 

 bright blue. 



