50 fl rrKRiCACEJE. (ST. JOHN'S-WORT FAMILY ) 



-'. II. Kal ill Kill ll m, L. Bushy, l-3 high; branches 4-ank-d : 

 branchleis 2-odged ; leaves crowded, glaucous, oblanceolate ; flowers few in a 

 cluster; yrWs- orate 5-celled. Wet rocks, Niagara Falls and Northern lakes. 

 An-. Leaves 1' - 2 ' long. Flowers 1' wide. 



3. II. proliliciiiii, L. (SHRUBBY ST. JOHX'S-WORT.) Branchlets 2- 

 edired ; leaves lanceolate-oblong, mostly obtuse, narrowed at the base; flowers 

 nuiii runs, in simple or compound clusters; pods oblong, 3-celUd. New Jersey 

 k> Michigan, Illinois, and southward. July- Sept. Shrub l-4 high, with 

 long rather simple shoots, leaves 2' long and ^' or more wide, and flowers $'- 1 

 in diameter. Varies greatly in size, &c. 



Var. densiflorillll. Exceedingly branched above, l-6 high, the 

 branches slender and crowded with smaller leaves; flowers smaller (^'-'in 

 diameter) and more numerous, in crowded compound cymes. (II. densiflorum, 

 & H. galioides, Pursh.) Pine ban-ens of New Jersey, and glades of "Western 

 Maryland, Kentucky, and southward. 



* * Perennial herbs: styles (diverging) and cells of the pod 3: petals and anthers 

 with black dots : calyx erect : stamens distinctly in 3 or 5 clusters. 



4. II. PERFORATUM, L. (COMMON ST. Joiix's-wouT.) Stem much 

 branched and corymbed, somewhat 2-edged (producing runners from the base) ; 

 leaves elliptical-oblong or linear-oblong, with pellucid dots ; petals (deep yellow) 

 twice the length of the lanceolate acute sepals flowers numerous, in open leafy 

 cymes. Pastures and meadows, c. June -Sept. Too well known every- 

 where as a pernicious weed, which it is difficult to extirpate. Its juices are very 

 acrid. (Nat. from Eu.) 



5. II. coryml>6siiin, Muhl. Conspicuously marked with both black 

 and pellucid dots; stem terete, sparingly branched; leaves oblong, somewhat 

 clasping ; flowers crowded (small) ; petals pale yellow, much longer than the 

 oblong sepals. Damp places; common. July -Sept. Leaves larger and 

 flowers much smaller than in No. 4; the petals 2" -3" long, marked with black 

 lines as well as dots. 



$ 3. Stamens very numerous, obscurely clustered : pod l-celled, or incompletely 3-celled, 

 lite .'3 ji/iiceiittK sometimes borne on short partitions, but not joined in the centre : 

 I" nnnial herbs or low shrubs. 

 * SqxtUJbUaceout and spreading, unequal : styles more or less united into one. 



6. II. Cllipticum, Hook. Stem simple, herbaceous (lhigh), obscure- 

 ly Wangled; Icur,* spreading, clliptical-ol)lon;/, obtuse, thin ; cyme nearly naked, 

 'MIIKT few-flowered; srpals oblong ; pods ovoid, very obtuse, purple, 1-cellcd.- 

 \V--i places New England and Pennsylvania to Lake Superior and northward 

 ,J'ih, Aug. Petals light yellow, 3" long. 



7. II. iKlprt'SSllin, Barton. Stem simple, herbaceous, or slightly woody 

 at th l base (l-2 high), obscurely 4-angled below and 2-edged above; leaves 



>: !n/, /inino/iiti' or linear-oblong, often acute, thin ; cyme leafy at the base, 

 'i-vv ll'iutTed ; sffiils liiirar-liuirrolate. ; j/ods Ovoid-oblong, inrumpletrly 3 - 4-rfflxL 

 Moist places Rlnxle Hand (Olney), Now Jersey, Pennsylvania, un.l southwest- 

 ward. July, Aug. Leaves l' long. Petals bright yellow, 3" - 



