630 



AMMIACEAE. 



Vol II. 



2. Chaerophyllum Teinturieri Hook. Teiiituricr's Chervil. Fig. 31 14. 



C. Teinturieri Hook. Coiiip. I!ot. Mag. i : 47. 1835. 



Cliiieroj^hyl'.um procnmbcns van Teinturieri C. & R. Bot. 

 Gaz. 12 : 160. 1887. 



C. reflexum Bush Trans. Acad. St. Louis 12: 62. 1902. 



Similar to the preceding species, more or less pu- 

 bescent, much branched, often taller. Ultimate leaf- 

 segments acute or obtuse; rays of the umbels 1-3' long; 

 fruit 3"-4" long, less than l" wide, glabrous or pubes- 

 cent, narrowed above into a distinct beak, its prominent 

 ribs as broad as the intervals between them, or broader. 



In dry soil, southern Virginia to Tennessee, Kansas, FJor- 

 ija and Te.xas. March-May. 



C. texanum Coult. & Rose differs by the fruit being less 

 beaked, and ranges from Texas, northward into Missouri. 



C. sylvestre L. lAnthriscus sylvestris (L.) Hoffm.], wild 

 chervil, dog-parsley or wild beaked-parsley, a tall annual 

 with decompound leaves and smooth beakless fruit, has been 

 found as a waif on Staten Island and in ballast about the 

 seaports. 



9. DERINGA Adans. Fam. PI. 2 : 498. 1763. 



[Cryptotaenia DC. Mem. Omb. +2. 1829.] 



Perennial glabrous herbs, with 3-divided leaves, and compound irregular umbels of 

 white flowers. Involucre and involucels none. Calyx-teeth obsolete Petals inflexed at the 

 apex. Stylopodium conic ; fruit narrowly oblong, laterally compressed, glabrous. Carpels 

 nearly terete, the ribs equal, obtuse ; oil-tubes solitary in the intervals and also beneath 

 each rib. Seed-face flat or nearly so. [Said to be named for Deering 01 Bering.] 



A nionotypic genus of eastern North America and Japatii 



I. Deringa canadensis (L.) Kuntze. 

 Honewort. Fig. 31 15. 



Sison canadcnse L. Sp. PI. 252. 1753. 



C. canadensis DC. Mem. Omb, 42 1829. 



D. canadensis Kuntze, Rev. Gen. PI. 266. 1891. 



Erect, rather slender, freely branching, 

 l-3 high. Lower and basal leaves long- 

 petioled, 3-divided, the segments thin, ovate, 

 acute or acuminate at the apex, sharply 

 and irregularly serrate, incised, or some- 

 times lobed, i'-4' long, the lateral ones 

 nearly sessile and oblique at the base, the 

 terminal one abruptly narrowed into a mar- 

 gined incised stalk; upper leaves nearly 

 sessile ; umbels 4-10-rayed ; pedicels un- 

 equal : fruit narrowed at both ends, 2"-3" 

 long, often curved. 



In woods, New Brunswick to South Dakota. 

 Missouri, Georgia and Texas. Ascends to 

 4200 ft. in North Carolina. June-.Tuly. 



10. PSEUDOTAENIDIA Mackenzie. Torreya 3: 158. 1903. 



An erect glabrous and glaucous perennial, with stout rootstocks. Leaves ternately 

 decoiTipound, with entire segments. Umbels compound. Involucre and involucels wanting, 

 or rarely of I or 2 bracts. Calyx-teeth short. Fruit oval or obovate, glabrous, strongly 

 flattened dorsally, the dorsal and intermediate ribs filiform, much narrower than the intervals 

 between them, the lateral ribs broadly wiitged; oil-tubes i or 2 in the intervals; stylopodium 

 very short. [Greek, false Taenidia.] 



A monotypic genus. 



