AMBEOSIACaS. 46. CAMPAiTDLACBLa. 221 



plexicavde is not even naturalized. H. pulmonarium is perhaps 

 not determinable, but may be S. nigrescens.l 



Anomalous Genus. Order AMBEOSIACE^ LiiiJc. 



48. Xan'thium Linn. 



[^. strumdriam (L.) ; st. without spines, lower 1. lieartshaped 

 3-lobed at the base coarsely dentate, beaks of the fr. 2 sti'aio;ht. 

 — M B. 2544. — Involucre of the fr. oval, downy. — Eich waste 

 land, not naturalized. A. XUl. EX.] E. 



£jr. spiudmm (L.) ; has also been found.] 



Order XLVI. CAMPANULACE^. 



Cal. superior, 6-fid or entire. Cor. gamopetalous, inserted 

 on the calyx, 5-lobed, regular or irregular. Stam. inserted 

 with, but not adhering to the cor., alternate with its lobes ; 

 anth. distinct or cohering, 2-celled, opening longitudinally. 

 Fr. dry, capsular, opening by lateral fissures or valves at the 

 top, many-seeded. Embryo straight, in the axis of fleshy albu- 

 men. — No stipules. 



Tribe I. LOBELIE^. Cor. irregular. Anth. cohering. Style 

 glabrous with a fringe of hairs below the stigma. 



1. Lobelia. Cal. 5-fld. Cor. irregular; tube split to the 

 base at the hack; limb 2-lipped, 5-parted. Anth. 5, 

 cohering. Stigma blunt, surrounded by a cupshaped fringe. 

 Caps. 2— 3-oelled, opening at the end by 2 — 3 valves. 



Tx. n. CAMPANXILBM. Cor. regular. Anth. usually free. 

 Style pubescent. 



2. JAsioms. Cal. 5-fid. Cor. rotate vpith 5 long linear 

 segments. Anth. coJiering at their base. Style hairy, 

 bifid. Caps. 2-celled, opening broadly at the end by short 

 teeth. 



3. PHYTBtraiA. Cal. 6-parted. Cor. 2-Upped, with 5 long 

 linear segments. Anth. free ; filaments dilated at the base. 

 Style hairy, 2 — 3-fid. Caps. 2 — 3-ceUed, bursting at the 

 sides. 



4. Campanhxa. Cal. 5-parted. Cor. mostly bellshaped, 

 mth 5 broad and shallow segnienis. Anth. free ; iUaments 



