60 CLUSiACE^. (balsam-tree family.) 



§2. Stamens 3 -'20 : ccijisitlc strictli/ X-celleil : sti/les sejiarale : annuals. 

 ♦ Flowers in cymes. 



23. H. mutilum, L. Stems slender, brandling aliove, 4-angle(l, loaves 

 oblong or rouiiclisli, obtuse, i-laspiug, 5-nerved ; eynies leafy at the base ; sepals 

 lancx'uhito, mostly longer than tlie small jietals, and ocjualling the (green) 

 ovoiil cai)suie ; stamens 6-12. — Ditches anil low grounds, common. June- 

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

 small, remote. 



24. H. Canadense, L. Stems simple or l)ranched, 4-angled; leaves 

 linear or linear-lanceuhite, the upper ones acute, .se.ssile ; sepals lanceolate- 

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

 sandy places. June -Oct. — 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 tiie 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, S(jnth 

 Carolina, and westward. July -August. — Stems and branches stouter tiian 

 the last. Stamens 10-20. 



27. H. gymnanthum, Engelm. & 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, eqiial-sided, imbricated in the bud. Stamens mostly 9, 

 and united in sets of three, ■Rdth a scale-like gland Ijetweeu each .set. Styles 3. 

 distinct. Capsule 3-celled, 3-valved, many-seeded. — Smooth perennial lierl)8. 

 Flowers ro.se-color, in contracted lateral and terminal cymes. 



1. E. campanulata, Pursh. Leaves oblong or oval, cordate, clasj)ing, 

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

 Florida, and northward. July- August. — Stem terete, l°-2° high. 



2. E. petiolata, Pursh. Leaves oblong, narrowed at the 1)ase, short- 

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

 the preceding. July - August. — Stem 2° high. 



Order 21. CLUSIACEyE. (Balsam-Trke 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- 



