10 Prof. C. C. Babington on the British Species of Arctium. 



attenuata sub dentibus nunquam constricta glabra, tubo co- 

 rollse undique fructu multo angustiore, petiolis fistulosis, foliis 

 radicalibus cordatis grosse crenatis crenis apiculatis. 



A. intermedium, Lange, Dansk. Fl. ed. 1. n. 1000 (1850). 



A. pubens, Bab. in Ann. Nat. Hist. ser. 2. xvii. 376 (1856) ; Man. 



Br. Bot. ed. 4. 185. 

 Lappa intermedia, Bchb. Icon. Fl. Germ. xv. 54, t. 81 ; Fl. Dan. 



t. 2663. 



Stem 3-4 feet high, ei*ect to the top, and, as well as the 

 spreading branches, racemose; lower peduncles longest. Heads 

 rather large, ovoid, not umbilicate, hemispherical with fruit, 

 greenish, clothed with a thick web when young, but becoming 

 nearly naked afterwards. Corolla nearly cylindrical in the 

 upper enlarged part, but narrowing gradually below into the 

 tubular slender lower part. Radical leaves rather acute, about 

 as long as broad, broadest at the insertion of the petiole ; pe- 

 tioles hollow, scarcely angular, only slightly but broadly furrowed 

 above. 



The very broad, rather acute, radical leaves with hollow pe- 

 tioles, and the rather large heads arranged in a racemose, not 

 subspicate, manner, will usually distinguish this plant, which is 

 probably not of uncommon occurrence. 



4. A. nemorosum (Lej.) ; inflorescentia spicato-racemosa, capitulis 

 subsessilibus arachnoideis, squamis involucri flores sequantibus, 

 parte superiore corollse tubo ejus subsequali subcylindrica sub 

 dentibus nunquam constricta glabra, tubo corollse undique 

 fructu multo angustiore, petiolis fistulosis, foliis radicalibus 

 cordato-oblongo-ovatis subconvolutis grosse crenatis crenis api- 

 culatis. 



A. nemorosum, Lej. Compend. Fl. Belg. iii. 129 (1836). 

 A. intermedium, Bab. in Ann. Nat. Hist. ser. 2. xvii. 374 ; Man. 

 Br. Bot. ed. 4. 184. 



Stem 3-4 feet high, its top and the tops of the branches usu- 

 ally nodding, bearing spike-like racemes of nearly sessile heads. 

 Heads intermediate in size between those of A. majus and A. 

 minus, ovoid with flowers, not umbilicate, much depressed with 

 fruit (then often twice as broad as long), green or purplish, 

 usually clothed with a thick web. Radical leaves blunt, a third 

 longer than broad, about equally broad throughout the lower 

 two-thirds, somewhat convolute; crenatures very broad, but 

 shallow, usually emarginate ; petioles hollow, slightly angular, 

 scarcely furrowed above. 



The long nearly parallel- sided leaves with very broad but 

 very shallow lobes or crenatures, each lobe being usually (if not 



