630 



AMMIACEAE. 



VOL II. 



2. Chaerophyllum Teinturieri Hook. Teinturier's Chervil. Fig. 3114. 



C. Teinturieri Hook. Comp. Bot. Mag. i : 47. 1835. 



Chaerophyllum procumbent var. 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- 

 bescerut, much branched, often taller. Ultimate leaf- 

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

 fruit 3 "-4" long, less than i" 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, Flor- 

 ida and Texas. March-May. 



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

 beaked, and ranges from Texas, northward into Missouri. 



C. sylvestre L. [Anthriscus 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. 42. 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 or Bering.] 



A monotypic genus of eastern North America and Japan. 



i. Deringa canadensis (L.) Kuntze. 

 Honewort. Fig. 3115. 



Sison canadense 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-io-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-July. 



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



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

 decompound, 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 winged; oil-tubes I or 2 in the intervals; stylopodium 

 very short. [Greek, false Taenidia.] 



A monotypic genus. 



