280 Class XVIII. Order IV. 



against the light appear like perforations. Flowers numerous, 

 terminal, bright yellow. Petals oval ; stamens numerous ; styles 

 three. July, August. Perennial. 



HYPERICUM CORYMBOSUM. Will A. Spotted St. John's Wort. 



Flowers with three styles, dotted ; stem erect, 

 branching ; leaves clasping, oblong-oval, obtuse, dot- 

 ted with black ; corymbs terminal, brachiate, crowded ; 

 calyx segments lanceolate. 

 Syn. HTPERICUM MACULATUM. MX. 



Somewhat smaller than the preceding, but with larger leaves. 

 Flowers smaller, pale yellow. Damp woods, Clelsea beach 

 island. July. Perennial. 



HYPERICUM CANADENSE. L. Canada St. John's Wort. 



Flowers with three styles, axillary, pedunculated. 

 solitary ; leaves sessile, linear, narrowed at base ; stem 

 herbaceous, square, dichotomous above. Willd. 



A small species, generally frequenting a soil which is some- 

 what moist. Stem round, with four prominent lines, formed by 

 the decurrcnt base of the leaves. Lower branches opposite, 

 upper ones in forks. Leaves linear-lanceolate, with transparent 

 dots. Flowers axillary and terminal, small, yellow, on short 

 pedicels. Capsules of a brownish colour, twice as long as the 

 calyx. July, August. Annual. 



HYPERICUM PARVIFLORUM. Li. Small flowered St. John's Wort. 

 Flowers with three styles ; stem four sided, erect, 

 branching, glabrous ; leaves ovate-oblong, obtuse, sub- 

 cordate, sessile ; panicles dichotomously corymbose ; 

 petals shorter than the calyx. 



Grows in the same situations with the last, and is somewhat 

 shorter with larger leaves. Flowers small, yellow. Cambridge- 

 port. July, August. Annual ? 



Sulgenus ELODEA. Petals uitli nectarifaroits daws. 

 Glands letwe.cn the divided stamens. 



