396 Mr. C. C. Babington on the Batrachian Kanunculi. 



ceeding the leaves, flowers moderate, petals 7-nerved not con- 

 tiguous persistent, stamens not exceeding the pistils^ stigma 

 tongue- shaped, receptacle elongate-conical, carpels |^-obovate 

 inflated at the end. 



R. Baudotii, Godr. in Mem. de Nancy , 1839, p. 21. f. 4, and Fl. de 



Lorr. i. 12, and Fl. de France^ i. 21 ; Koch^ Syn. ed. 2. 434. 

 Batrachium Baudotii, Van den Bosch, Prod. Fl. Batav. 7. 



Stem floating, rooting from the lower joinings, very bluntly 

 angular, with a shallow furrow on two sides, hollow. Submersed 

 leaves two or three times trichotomously divided into short filiform 

 segments, forking like those of R, confusus. Intermediate leaves 

 with fewer and linear segments. Petioles short or none. 

 Floating leaves flat ; divisions wedge-shaped regularly to their 

 base, 3-4-lobed, or often of many linear blunt segments. Out- 

 line of the floating or emerged leaves not more than a semicircle. 

 Petioles long. Stipules adnate nearly throughout. Peduncles 

 long, thick, from both kinds of leaves. Buds globular, de- 

 pressed (?). Flowers rather large, star-like. Sepals like those 

 of R. confusus (?). Petals white, yellow below, 2-2| times as 

 long as the calyx. Nectary shortly oval. Stamens 15-20. 

 Style long, recurved from its middle, prolonging the inner edge 

 of the ovary. Carpels very many (50-100 on each receptacle), 

 forming a globose mass. Inner edge often considerably rounded 

 near the top ; apiculus small. Receptacle thicker than the pe- 

 duncle. 



Owing to neglect, the above description is imperfect in a few 

 particulars. 



This plant is very nearly allied to R. confusus, Yf\\\\ which species 

 I long confounded it. R. confusus appears to be always a more 

 slender and elongated plant, never to have stalked segments to 

 its floating leaves, nor the deep lobes often replaced by broad 

 linear blunt segments, nor the short stamens, nor the globose 

 clusters of many rather pointed carpels with inflated tops, of 

 this plant. Here also the segments are truly wedge-shaped, the 

 outer margins of the lateral ones appearing to be constantly 

 straight quite to their base. The narrowing long peduncles, 

 tongue-shaped stigmas, many and inflated carpels, and great 

 diff'erence of appearance, separate it from R, heterophyllus, 



I am much indebted to my liberal friend M. R. Lenormand 

 for authenticated specimens of this plant ; and Dr. F. Schultz 

 has identified with it a plant gathered by Mr. Syme at Guillan, 

 near Edinburgh, specimens of which the latter gentleman has 

 kindly given to me. 



The R. marinus of Fries (Mant. iii. 51 ; Herb. Norm. ix. 28) 

 is closely allied to R, Baudotii ; but he is probably correct in 



