Anacardiaceae 247 
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| A. Sepals 4—5; petals 45; stamens 10; stigmas 4—5. LIMNANTHES (p. 247) 
| AA. Sepals 2—3; petals 2—3; stamens 6; stigmas |—3, FLOERKEA (p. 247) 
LIMNANTHES 
Stems low, diffuse. Leaves pinnate or pinnately dissected; stipules none. Flowers 
showy, white or rose-colored or yellow. Sepals 4—5. Petals 45. Stamens 10. 
_ Carpels 4—5; in fruit hard, distinct, subglobose. (Gk. limne—a lake; anthos—a 
flower; from the common lake-shore habitat.) 

A. Sepals ovate, copiously white-villous; leaves more or less pubescent with long white 
hairs; petals white, slightly if at all emarginate. U., 
L, floccosa, How. 
AA. Sepals lanceolate, glabrous or with a few scattered hairs; leaves glabrous. 
B. Flower-parts in 5’s; petals 6—18 mm. long. 
C. Petals much exceeding the sepals, emarginate to truncate at APEX en AD (L. 
gracilis; L. sulphurea.) L. dougilasii R. Br. 
CC. Petals hardly exceeding the sepals rounded at apex. OU. 
L. pumila How. 
| BB.  Flower-parts in 4’s; petals 34 mm. long, not exceeding the sepals. W. 
L. macounii Trel. 
FLOERKEA FALSE MERMAID 
Stems diffuse. Leaf-divisions 35, rarely more, linear to elliptic, remote, entire. 
Flowers small, white. Sepals 2—-3. Petals 23, oblong, entire, about 2 mm. long. Sta- 
mens 4—6. Mature carpels |—3, fleshy. (Honor of G. H. Floerke, a German botan- 
ist.) W. E.  (F. occidentalis, ) F. proserpinacoides Willd. 
ANACARDIACEAE Sumac Family 
Shrubs (ours) or trees; juice acrid, resinous or milhy. Leaves alternate (ours) or 



opposite. Flowers mainly regular, perfect or polygamo-dioicous. Calyx 3—7-cleft or 
-parted. Petals as many as the sepals or rarely none. Stamens |—2 times as many as 
the petals, rarely fewer, rarely more. Ovary in the staminate flowers |-celled: ovary in 
the pistillate flowers 1- (ours) or 4—5-celled; styles 1—3 (in ours 3); cells |-ovuled. 
Fruit usually a small drupe. 
RHUS SUMAC 
Leaves simple (not ours) or 3-foliolate or odd-pinnate; stipules none. Flowers 
small, polygamous or dioicous, in axillary or terminal panicles or racemes or heads. Ca- 
lyx 4—6-cleft or -parted, persistent. Petals equal, spreading. Stamens 5 (ours). Pis- 
til I, sessile; ovary |-celled, |-ovuled. Drupe small, |-seeded, mostly globose, pubescent 
or glabrous. (Celtic rhudd==red, hence Gk. rhus—these plants, on account of the red 
fruit. ) 
A. Leaflets 11—31; fruit red, pubescent. E. (IR. glabra occidentalis; R. cismon- 
tana. ) R. glabra L. (Smooth Sumac) 
AA. Leaflets 3; fruit white or red, glabrous. ; 
B. Plant with unpleasant odor; flowers in spikes or heads; fruit red. W.C. E. 
R. trilobata Nutt. (Skunk Bush) « 
BB. Plant without unpleasant odor; flowers in panicles; fruit white, smooth or striate. 
C. Leaflets mostly subentire, the lateral ones petioled. E. (R. rvdbergii.) 
R. toxicodendron L. (Poison Ivy) 

