PIPER—-FLORA OF THE STATE OF WASHINGTON. 413 
Ranee: Alaska to California and the Blue Mountains, Lake Superior. 
SPECIMENS EXAMINED: Seattle, Piper, June, 1891; upper Valley Nisqually, Allen 116; 
near Skagit Pass, Lake & Hull 772; Stampede Pass, Henderson, October 4, 1892; Stevens 
Pass, Sandberg & Leiberg 753; Yakima Pass, Watson, November 19, 1880; Blue Moun- 
tains, Piper, July, 1896; Horner; Clallam County, Elmer 2508; Big Meadow, Kreager 424; 
without locality, Vasey in 1889. 
ZONAL pisrRiBUTION: Humid Transition and Canadian. 
APIACEAE. Cevery Famity. 
Flowers in dense heads; fruit scaly or tuberculate.....-.---- Erynoium (p. 414). 
Flowers in umbels. 
Fruit more or less bristly. 
Bristles hooked covering the whole fruit surface .... SANIcULA (p. 414). 
Bristles only on the ribs of the fruit. 
Stylopodium obsolete ; bristles barbed at tip... Daucus (p. 415). 
Stylopodium conical; bristles not barbed. 
Carpels oblong or ovate .....------------ Cauca.is (p. 416). 
Carpels linear... ..--------------------- WasHINGTONIA (p. 416). 
Fruit glabrous, not at all bristly. 
Carpels strongly flattened dorsally. 
Stylopodium conical; petals obcordate...-.--- Herac eum (p. 417). 
Stylopodium flat or obsolete. 
Calyx teeth evident; stylopodium flat... - CYNOMARATHRUM (p. 417). 
Calyx teeth obsolete or nearly so; stylo- 
podium obsolete. 
Plant ‘caulescent and — branching; 
flowers white. 
Ultimate segments of the leaves 
large .....-.-2--------+------ ANGELICA (p. 418). 
Ultimate segments of the leaves 
small .....-..--------------- CoNn10sELINUM (p. 419). 
Plants acaulescent; or, if caulescent, 
flowers not white. 
Mostly acaulescent; lateral ribs 
thin .......22..------------- Lomatium (p. 419). 
Mostly caulescent; lateral ribs 
thick ........-.------------- LEPTOTAENIA (p. 425). 
Carpels not dorsally flattened. 
Oil tubes present; leaves not peltate. 
Fruit with a single oil tube in each interval. 
Stylopodium conical. 
Leaflets linear. .....------------ Carum (p. 426). 
Leaflets lanceolate to ovate... --- Cicuta (p. 426). 
Stylopodium flat or obsolete. 
Flowers yellow; leaves simple or tri- 
foliolate......-.------------- Zizia (p. 427). 
Flowers white. 
Fruit elongate ......------- LEIBERGIA (p. 427). 
Fruit short. 
Leaves decompound .... OENANTHE (p. 427). 
Leaves reduced to hollow 
petioles ....--------- Livanopsts (p. 428). 
Fruit with more than one oil tube in each 
interval. 
