142 UMBELLIFERAE 



1. DAUCUS L. 



Involucre and involucels present. Umbels concave in fruit. Fruit 

 slightly flattened dorsally. 



1. D. Carota L. WILD CARROT. Bristly biennial, l-3 high : 

 leaves decompound, the ultimate divisions cleft and sharp-pointed. 

 Waste places, Kansas City, Independence and Dodson. Not common. 

 June-August. 



2. PASTINACA L. 



Involucre and involucels absent. Fruit oval, flattened dorsally, the 

 lateralribs winged. 



1. P. sativa L. WILD PARSNIP 2-5 high : leaf segments ses- 

 sile, ovate, the ultimate divisions cut-serrate. Abundant throughout in 

 waste places. June-September. 



3. POLYTAENIA DC. 



Involucre none. Involucels small. Fruit oval, much flattened dor- 

 sally, the lateral ribs strongly corky-winged. 



1. P. Nuttallii DC. PRAIRIE PARSLEY. l-4 high : leaf segments 

 sessile, ovate, pinnatifid or parted, the divisions serrate or entire : fruit 

 3 /x long. Frequent in barrens throughout the southwestern part. May- 

 June. 



4. LOMATIUM Raf. 



Perennial. Involucre none. Involucels present. Fruit oval or oblong, 

 much flattened dorsally, the later ribs winged. 



1. L. daucifolium (Nutt.) C. & R. FENNEL-LEAVED PARSLEY. 1 

 or less high, more or less tomentose : leaf divisions capillary : involucels 

 gamophyllous : fruit glabrous. Common in barrens from Westport to 

 Adams, Grain Valley and southward. April-May. 



5. THASPIUM Nutt. 



Perennial herbs. Involucre none. Involucels small. Fruit oblong, 

 barely flattened, the ribs strongly winged. 



Glabrous throughout. 1. T. aureum. 



Strongly puberulent at the joints. 2. T. barbinode. 



1. T. aureum Nutt. GOLDEN ALEXANDERS. l-2 high : stem 

 leaves ternate, the leaflets ovate-lanceolate, serrate. Prairies north of 

 Lee's Summit. Very local. May-July. 



2. T. barbinode (Michx.) Nutt. MEADOW PARSNIP. l-3 high : 

 leaves bipinnate, the leaflets ovate to lanceolate, incised-serrate to cleft : 

 flowers light yellow. Locally common in rocky woods along the Blue at 

 Martin City. May-July. 



6. ERYNGIUM L. 



Flowers in dense bracted heads. Calyx teeth sharp-tipped. Fruit 

 ovoid to obovoid, flattened laterally, but not ribbed, tuberculate- scaly. 

 This genus probably represents a distinct family. 



