60 CLUSIACEJE. (BALSAM-TREE FAMILY.) 



2. Stamens 5 -20 : capsule strictly l-celled : styles separate : annuals. 



* Flowers in cymes. 



23. H. mutilum, L. Stems slender, branching above, 4-augled, leaves 

 oblong or roundish, obtuse, clasping, 5-uerved ; cymes leafy at the base ; sepals 

 lanceolate, mostly longer than the small petals, and equalling the (green) 

 ovoid capsule; stamens 6-12. Ditches and low grounds, common. June- 

 August. Stem 1 high. Branches of the cyme filiform. Flowers very 

 small, remote. 



24. H. Canadense, L. Stems simple or branched, 4-angled; leaves 

 linear or linear-lanceolate, the upper ones acute, sessile ; sepals lanceolate- 

 acute, longer than the petals, shorter than the oblong (brown) capsule. Wet 

 sandy places. June -(Jet. Stem 4' -12' high, with the branches erect. 

 Flowers small, copper-yellow. Stamens 5-10. 



* * Flowers scattered on the slender branches : leaves minute. 



25. H. Sarothra, Michx. Stem much branched ; branches erect, fili- 

 form ; leaves minute, subulate, bract-like; flowers small, sessile; sepals 

 scarcely half as long as the lanceolate purple capsule. Sandy old fields. 

 June- August. Stems 6' -12' high. Stamens 5-10. 



26. H. Drummondii, Torr. & Gray. Stem much branched ; leaves 

 linear or the lower ones oblong, acute, appressed; sepals barely shorter than 

 the ovate capsule ; flowers pedicelled. Dry barren soil, Florida, South 

 Carolina, and westward. July - August. Stems and branches stouter than 

 the last. Stamens 10-20. 



27. H. gymnanthum, Eugelm. & Gray. Stem sparingly branched, 

 1-H high; leaves 4" -8" long, ovate, clasping; cymes bracted ; sepals 

 lanceolate, longer than the petals, equalling the conical capsule; stamens 10- 

 12. Barrens of Tennessee, and westward. July. 



3. ELODES, Adans. 



Sepals 5. Petals 5, equal-sided, imbricated in the bud. Stamens mostly 9, 

 and united in sets of three, with a scale-like gland between each set. Styles 3. 

 distinct. Capsule 3-celled, 3-valved, many -seeded. Smooth perennial herbs. 

 Flowers rose-color, in contracted lateral and terminal cymes. 



1. E. campanula ta, Pursli. Leaves oblong or oval, cordate, clasping, 

 conspicuously dotted beneath ; stamens united below the middle. Swamps, 

 Florida, and northward. July - August. Stem terete, 1 - 2 high. 



2. E. petiolata, Pursh. Leaves oblong, narrowed at the base, short- 

 petioled, obscurely dotted beneath ; stamens united above the middle. With 

 the preceding. July -August. Stem 2 high. 



ORDER 21. CLTJSIACE^E. (BALSAM-TREE FAMILY.) 



Trees or shrubs, with resinous yellow juice, opposite coriaceous en- 

 tire dotless leaves articulated with the stem, and regular hypogynous 

 flowers. Sepals 3-6. Petals 4-9. Stamens mostly numerous, dis- 



