l66 UMBELLACEAE (CARROT FAMILY) 



JJ. Involucre bracts conspicuous. U. (Gk. taenion = a band ; pleuron = 

 a rib; referring to the wide ribs of the carpels.) Taeniopleurum howellii 

 GG. Stylopodium flat or none. 



K. At least the lateral ribs thick and corky. 



L. Plants in water or very wet places; dorsal ribs of the carpels filiform. 



W. C. (Gk. oinos = wine, anthos = a flower; some species were used 



for scenting wine.) Oenanthe sarmentosa (WATER CELERY) 



LL. Plants of rather dry soil; dorsal ribs of the carpels prominent and 



corky. 



M. Ribs of the carpels much wrinkled when old; involucre none; fruit 



3 mm. long. E. (Gk. rhysos = wrinkled, pteron = a wing; referring 



to the fruit wings.) Rhysopterus plurijugus 



MM. Ribs of the carpels not wrinkled; involcre present; fruit not over 



2 mm. long. W. (Greek name for some plant of this family.) 



Ammi visnaga (TOOTHPICK PLANT) 



KK. Ribs obscure or none. E. (Honor of Mr. Leiberg, an American 

 botanist.) Leibergia orogenioides 



FF. Flowers yellow; stylopodium flat or none. 



N. Ribs of the carpels conspicuously winged. E. (A modification of Thapsia, 

 a related genus.) Thaspium aureum (GOLDEN MEADOW PARSNIP) 



NN. Ribs of the carpels filiform. E. (Honor of I. B. Ziz, a Rhenish bota- 

 nist.) Zizia cordata (HEART-LEAVED ALEXANDERS) 



GROUP 4 



A. Stylopodium conic. 



B. Fruit round; carpels globose; carpel ribs very slender, inconspicuous. W. E. 

 (The Latin name of the Water Cress.) Berula erecta 



BB. Fruit ovate or oblong. 

 C. Ribs of the carpels prominent, equal. 



D. Umbel is-25-rayed; fruit oblong to ovate; carpels flattened laterally if 

 at all. (From the country Liguria where garden Lovage was first found.) 



Ligusticum (LOVAGE) 



DD. Umbels 5- 1 2 -rayed; fruit oblong to linear; carpels slightly flattened dor- 

 sally if at all. (Honor of George Washington, the first President.) 



Washingtonia (SWEET CICELY) 



CC. Ribs of the carpels filiform or almost none. E. (Gk. eu = well, lophos = 

 a plume; apparently referring to the plumelike leaves.) Eulophus bolanderi 

 AA. Stylopodium flat or none. 

 E. Seed face sulcate or decidedly concave. 



F. Carpels flattened dorsally. E. (Gk. aulos = a tube, sperma = a seed; 

 apparently from the many oil tubes in the fruit.) Aulospermum glaucum 



FF. Carpels terete. (Probably in honor of O. Drude, a European botanist ; 

 Gk. phyton = a plant.) Drudeophytum 



EE. Seed face plane or but slightly concave. 



G. All of the ribs of the carpels conspicuously winged. 



H. Plant of the seashore, tomentose; wings of the carpels corky-thickened. 

 W. (Possibly Gk. glenos = a thing to stare at, because it is so woolly.) 



Glehnia littoralis 



