170 UMBELLIFERJE. [APIUM. 



2. A. nodiflo'rum, Reichb. ; prostrate or creeping, leaves pinnate or 

 3-foliolate, leaflets slightly lobed serrate. 



Marshy places, from Isla, the Clyde, and Fife southd. ; Ireland ; Channel 

 Islands; fl. July- Aug. Perennial. Stems 1-3 ft., slender. Leaflets ^-1| 

 in., very variable, sessile, oblong, crenate serrate or lobulate. Umbels leaf- 

 opposed, sessile or shortly peduncled ; rays unequal ; bracts usually ; brac- 

 teoles many, oblong, scarious. Flowers small. Fruit T ] | in. ; styles short, 

 divergent. DISTRIB. From Belgium southd,, "W. and N. Asia, N. Africa. 



A. nodiflo'rum proper; stem decumbent, flowering branches rooting at the 

 base only, peduncles short, bracts or 1-2. YAR. H. re'pens, Koch (Slum 

 re'pens, Sm.) ; smaller, creeping, leaflets sharply toothed, peduncles long, 

 bracts 2-3 unequal unilateral. Eather rare. YAR. ochrea'tum,DG. ; dwarf, 

 creeping, leaflets small obtuse, peduncles \-\ in., bracts 1-3 lanceolate. 

 Barnes, Surrey. 



3. A. iimnda'tum, Reichb. ; decumbent or floating, submerged leaves 

 2-3-pinnate, leaflets capillary rarely linear, floating leaves pinnate, lower 

 leaflets deeply 3 j cleft. 



Wet places, local, from Orkney southd. ; ascends to 1,600 ft. in Yorkshire 

 Ireland; Channel Islands; fl. June-July. Perennial, flaccid, small, strag- 

 gling. Stem 4-10 in., stout, flexuous. Leaflets of upper leaves ^ in., cuueate, 

 cut or lobed. Umbels very small, leaf-opposed, peduncles short, rays 2-4 

 unequal; bracts ; bracteoles 4-6, lanceolate. 3-nerved. Flowers minute. 

 Petals incurved. Fruit T \> in., subsessile, elliptic-oblong; styles recurved. 

 DISTRIB. From Gothland southd. (excl. Greece). 



1O. CA'RUM, L. CARAWAY. 



Annual or perennial, glabrous herbs. Leaves pinnate or decompound. 

 Umbels compound, few- or many-rayed ; bracts few or ; bracteoles more 

 numerous or 0. Flowers white or yellow, 2-sexual or polygamous. Calyx- 

 teeth minute or 0, sometimes unequal. Petals with an inflexed point and 

 usually very deep notch ; of the male flowers often irregular. Disk-lobes 

 conical. Fruit ovoid or oblong, often hispid, laterally compressed, hardly 

 constricted at the commissure, carpophore 2-fid ; carpels 5-angled, primary 

 ridges obtuse equal, lateral close to the commissure ; vitta? 1 (rarely 2) in 

 the furrows. Seeds -^-terete. DISTKIB. Temp, and subtrop. ; species 50. 

 ETYM. The old Latin name. 



SECTION 1. Ca'rum proper. Root fusiform or fibrous. Leaves 1-2- 

 pinnate. Calyx-teeth minute. Petals white, deeply notched. 



1. C. verticilla r tum, Koch ; root of fascicled fibres, leaves linear pin- 

 nate, leaflets sessile short whorled palmately multifid, segments capillary. 

 Meadows in the W. counties, from Argyll to Devon and Cornwall, local ; 

 Ireland; Channel Islands; fl. July-Aug. Root-fibres 1-2 in., thickened 

 downwards. Stem 1-2 ft., erect, striate. Radical leaves 6-12 in., sub- 

 cylindric ; leaflets curved upwards, capillary-multifid. Umbels regular, 

 flat-topped; rays 1-2 in., peduncles slender; bracts and bracteoles many, 

 slender, short, reflexed. Flowers white or pink. Fruit ovoid; ridges 



