134 PENTANDRIA.— DIGYNIA. 



HAB. Muddy banks. July— Aug. U . Leav. 1% in, 



long, succul., with 5 transv. nerves; umb. 8 — 10-fi* 

 £. H? composita: root tuberous ; stem simple, 2-leaved ; 



leaves subternate ; leaflets many-cleft ; umbel 3 — 5- 



flowered. 

 HAB. Alluvial soils. April. 2J. Root round; stem 



ascend., 1 -leaved ; scapes 4 — 5 in. high ; fi. white, 



204. SISON. | Honey-wort. Umbelliferce. 



1. S. aureus: stem nearly simple, sulcate ; leaves bi- 



ternate, shining ; leaflets oblong-lanceolate, atten- 

 uate at the base, incisely serrate ; involucrum 0. 

 HAB. Rocky hills. June— July. 1£. Stem 1|— 2 ft. 

 high ; umb. comp. ; fl. yell. ; fruit dark- col. 



2. S. integerrimus : stem nearly simple ; leaves bi-tri- 



ternate, glaucous, very entire ; leaflets oval, entire j 

 umbel with elongated rays ; involucrum 0. 

 HAB. Meadows and mountains. June. V-. Stem 18 

 in. high : rays of the umb.filif. ; fi. yell. ; fruit black. 

 >. S. capillaceus : leaves decompound, filiform ; stem 

 dichotomous, angular ; involucrum subpinnatifid. 

 HAB. Brackish meadows. July — Oct. ©. Much bran,? 

 1 ft. long ; umb. axil I., pedunc. ; fl. white. 



205. CNIDIUM. Umbelliferie. 



1. C. canadense : stem angular, flexuous ; leaves bipin- 



nate, shining ; leaflets many-parted ; segments lan- 

 ceolate. 

 HAB. Mouths of rivers. + 



2. C. atropurpureum : radical leaves subcordate, sim- 



ple, serrate ; cauline ones ternate ; leaflets ovate, 

 acute, subcordate ; middle one petiolate ; partial 

 involucra dimidiate, 3-leaved. 

 HAB. Rocky banks of rivers. June. 1[. Stem 2 — o 

 ft. high ; fl. dark-purple. 



206. SMYRNIUM. Alexanders. Umbelliferce. 



S. cor datum : radical leaves simple, cordate, crenate ; 



stem-leaves ternate, serrate ; umbels terminal. 

 HAB. Rocky hills. May —June. It. Stem 2— 8 



ft. high; rad. leav. on long pet.; fl. yell.; fruit 



black. 



