PARSLEY FAMILY. 353 



none. Calyx-teeth obsolete. Prult ovate, with a broad commissure. 

 Eibs slender, equal, distant. Oil-tubes numerous, 2 to 6 in the inter- 

 vals, several on the face. (Connected with Latin pampinus, a tendril, 

 the application not obvious. ) 



1. P. apiodora Gray. Pimpinbl. Erect, 2 or 3 ft. high; 

 leaves mostly radical, 2 or 3 times ternate; leaflets ovate in outline, 

 laoiniately pinnatifld and serrate, 1 to IJ in. long; umbels long- 

 peduueled; rays 14 to 20, 1 to 2 in. long; fruit broadly ovate, IJ lines 

 long; oil-tubes 4 or 5 in the dorsal intervals, about 6 in each lateral, 

 8 or more on the commissural side. 



Rocky places about the summits of the Mission Hills, San Fran- 

 cisco; Point Eeyes, on bushy hills, and northward to Mendocino Co. 

 June. 



17. SIUM L. Wateb Parsnip. 



Glabrous perennial marsh or aquatic herbs. CauUne leaves simply ' 

 pinnate. Plowers white in compound umbels. Bracts and bractlets 

 several to many. Calyx-teeth minute. Styles short. Stylopodium 

 depressed. Fruit ovate or oblong, somewhat laterally compressed, 

 with narrow commissure. Ribs prominent, corky. Oil-tubes 2 or 

 3 in the intervals, at least in some of the intervals. (Sion, Greek 

 name of some water plant.) 



1. S. cicutaefolium Gmel. var. heterophyllum. Stem stout, 2J 

 to 3J ft. high, from a cluster of fleshy fibrous roots, angular and more 

 or less flexuous; lowest leaves sometimes simple, on long fistulous 

 petioles, serrate or laeiniate, or pinnate like the cauline, 3J ft. long or 

 less; leaflets 5 to 13, broadly lanceolate, serrate, 3 to 4 in. long; bracts 

 lanceolate, over J in. long, scarious-margined below; bractlets ovate- 

 lanceolate, IJ lines long; fruit ovoid, 2 lines long, with acute ribs; 

 oil-tubes 2 on the face, 2 or 3 in the intervals, occasionally solitary. — 

 (S. heterophyllum Greene.) 



Salt marshes: Suisun Marshes; Stockton. 



18. CRANTZIA Nutt. 



Small glabrous perennials. Stems fistulous, creeping and rooting 

 in the mud, only the leaves and short peduncles erect. Leaves 

 reduced to hollow cylindrical petioles jointed by transverse partitions. 

 Flowers dull white or slightly tinged with pinkish brown, in a few- 

 flowered umbel. Bracts of the involucre minute. Fruit subglobose. 

 Dorsal ribs filiform, the lateral corky and thickened next to the 

 commissure. Oil-tulaes solitary in the intervals, 2 on the commissural 

 side. 



1. C. lineata Nutt. Leaves 1 to 8 in. long, 1 to 2 lines wide; 

 peduncles 1 in. long or less; fruiting pedicels 1 J to 3 lines long; petals 

 plane; fruit 1 line long. 



Salt marshes or brackish mud flats: Point Reyes, Davy; Port Costa 

 to Martinez; river banks at Antioch; Robert's Island, ace. to 

 Mrs. K. Brandegee. 



19. CENANTHE L. 



Aquatic glabrous herbs with succulent stem from thick rootstocks. 

 25 



