CISTACEAE 879 
Een SE 6-8 mm. long; lateral nerves of leaves 
minent beneath. 
Sepais" Décomin 4-6 mm. long: lateral nerves of 
leaves pro eens 2e 4. C. georgianum. 
Flower- due in re or less elongate thyrsoid 
pan 
c3 
. C. arenicola. 
Deval E. E apetalous flowers fully 2 mm. long at 
Se En T Pun scentipuleru ione 
5. C. Nashii 
Sepals hirsute. 6. C. thyrso 
Sepals of the apetalous flowers less than 2 mm. lene 7. C. Eom Or a. 
III. CANADENSIA 
Petaliferous flowers 1 or 2, their capsules p overtopped by 
the apetalous inflorescence. 8. C. canadense. 
Petaliferous oe S 5-12, the apetalous inflorescence on short 
ateral branche 9. C. Bicknellii. 
1, C. carolinianum (Walt.) Spach. Stem hirsute, 0.5-2.5 dm. tall: leaves 
mostly in a basal rosette; blades Ode dE to elliptic, 2—4 em. long: flow- 
ers few, in a raceme- like, cre ted i 
floreseence: petaliferous "flow ri - 
3 amens 
m [I 
linianum (Wal t) Micha. ui Dads 
Coastal Plain, N Fla. to E Tex. and N. C.— 
Spr. 
2. C. n Eee 2 og 
finely and dens escent, dm. 
a o blades E or the s t obo- 
m. lon ale ben 
green p corolla bright-yellow, 16—20 
. broad: eapsule of the larger flowers 4-6 mm. bro ad, many-seeded, that of 
the apetalous ones smaller and few-seeded. [H. corymbosum Michx x.]— —-Pine- 
lands, dunes, and open hammocks, Coastal Plain, Fla. to S. C. —Spr.-sum. or all 
ear S. 
3. C. arenicola (Chapm.) Barnhart. Stem canescent- tomentulose, 1-2 dm. 
long: leaf-blades n c iptic, 1-2.5 em. long, obtuse, only the midrib promi- 
nent benéath: petaliferous flowers with 25 stamens and 20 ovules, the fa ti aca 
with 5 sta S 
10 poo e vat 
becoming 6-8 mm. long: corolla yellow, 16-20 mm. broad: capsule bo out 
4 mm. long. [Z. arenicola Chapm.]—Coastal sand- dunes, Fla. to Miss. .—Spr. 
. Beorgianum (Chapm.) Barnhart. Stem 1.5-3 7 long: leaf-bla 
ens A : 
sepals various, the larger ovate or amu, phis ng 4-6 mm i ng, ac or 
slightly acuminate: corolla Pe , 15-18 mm. bids capsule ovoid- SO. 
about 4 mm. long, apieulat [H. geo o a apm.]—Sandy woods, pine- 
lands, e; and fields, Coastal Plain, N Fla. to E Tex. and Va.—Spr. 
9. C. Nashii (Britton) Barnhart. Stem 1.54 dm. lo ong: leaf-blades ellip- 
tie or linear -elliptic, 1-3 em. long, the midrib very prominent beneath: oan 
erous flowers with 15 sta amens and 8— l0 ovules, the apeta alous with 9s tamens 
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