62 ST. john's-tvoet family. 



++ ++ Shrubby, evergreen or nearly so, only SoMthefn. 



H. fasclcul^tum, Fascicled S. Leaves narrow-linear and small, and 

 with shorter ones clustered in the axils ; pod narrow. Wet pine barrens. 



H. myrtifblium, Myktle-leaved S. Leaves heart-shaped and partly 

 clasping, thick, glaucous ; pod conical. Wet pine barrens. 



H. aiireum, Golden S. Leaves oblong with a narrow base, glaucous 

 beneath ; thick ; flowers mostly single, very large (2' broad), orange-yellow ; 

 pod ovate. River-banks towards the mountains. 



H. nudifl6ruill, Naked-clustered S. Shrubby and evergreen S., less 

 so in Virginia, &e., has 4-angled branches, oblong pale leaves, and a peduncled 

 naked cyme of rather small flowers ; pods conical. 



++++++ Herbaceous, simple-stemmed. Northern §r Western. 



H. sphseroc&rpon, Sphekical-fkuited S. About 2° high ; leaves 

 diverging, oblong-linear (2' long), obtuse ; flowers numerous, small, in a naked 

 flat cyme ; sepals ovate ; pod globular, l-celled. Rocky banks, W. 



H. adpressilIU, Upriuht-leated S. A foot high ; leaves ascending, 

 lanceolate, often acute ; flowers few and rather small ; sepals narrow ; pod 

 oblong, partly 3-celled. Low grounds, Pennsylvania to Rhode Island. 



H. elliptieum, Elliptical-leaved S. Bai-ely 1° liigh ; leaves spread- 

 ing, oblong, thin ; flowers rather few in a nearly naked cyme, pale ; the pod 

 pui-ple, oblong-oval, obtuse, l-celled. Wet soil, N. 



1- -1- 1- Styles 3 wholly separate (see Lessons, fig. 255) : herbs. 

 ++ Ovary and pod 3-celled ; petals black'dotted : styles, mostly diverging. 



H. perfor&,tum, Common S. The only one not indigenous, nat. from 

 Eu., a troublesome weed in fields, &c. ; spreads by runners from the base ; 

 upright stems branching ; leaves oblong or linear-oblong, with pellucid dots ; 

 flowers rather large in open leafy cymes ; the deep yellow petals twice the length 

 of the lanceolate acute sepals. The juvce is very acrid. 



H. eorymbbsum, Coeymbed S. Common N. in moist ground ; stem 

 2° high, sparingly branched ; leaves oblong, slightly clasping, having black as 

 well as pellucid dots ; flowers rather small, crowded ; petals light yellow and 

 black-lined as well as dotted ; sepals oblong ; styles not longer than the pod. 



H. maculitum, Spotted S. Common S. has somewhat heart-shaped 

 or more clasping leaves, lanceolate sepals, and very long and slender styles : 

 othenvise like the last. 



++ ++ Ovary l-celled : stem strict : leaves ascending, acute, closely sessile, short. 



H. angulbsum, Angled S. Wet pine-barrens from New Jersey S. 

 Stem sharply 4-angled (l°-2° high), smooth; leaves ovate or lance-oblong; 

 flowers scattered along the ascending branches of the cyme, small, copper- 

 yellow ; styles slender. 



H. pilbsum, Hairy S. Wet pine-barrens S. Stem terete, and with the 

 lance-ovate leaves roughish-downy ; styles short. 



* * Annual, low and slender, small-flowered herbs: stamens 5-12 : ovary and 

 brown-purple pod strictly l-cetka : styles 3, separate : sepals narroio, erect : 

 petals narrow. 



t- Leaves conspicuous and spreading : flowers in cymes. 



H. mMilum, Small S. Slender, much branched and leafy up to the 

 flowei-s ; leaves partly clasping, thin, 5-nerved, ovate or oblong ; petals pale 

 yellow. Everywhere in low grounds. 



H. Canaa6nse, Canadian S. Stem and branches strictly erect ; leaves 

 linear or lanceolate, 3-nei-ved at the base ; petals copper-yellow. Wet sandy soil. 



■»- H- Leaves erect, awl-shaped or scale-like and minute : flowers very small and 

 scattered along the numerous bushy and wiry slender branches. 



H. Drumni6ndii, Drummond's S. In dry barrens, W. Illinois and S., 

 with linear-awl-shaped leaves, short-pedieelled flowers, and pods not longer than 

 the calyx. 



H. Sar6thra, ORANOE-riRASS or Pine-weed. Common in dry sterile 

 soil, with minute awl-shaped appressed scales for leaves, flowers sessile on the 

 Tffivy branches, and slender pods much exceeding the oalyjf . 



