122 FUMARIACE^E. 



very short general petiole, but with elongated secondary di- 

 visions : leaflets delicate, 3 — 5-lobed. Flowers in axillary 

 cymulose panicles, drooping on slender pedicels, white, ting- 

 ed with rose-color. 



Etymology. Dedicated to the late Major Adlum, an amateur botanist 

 and cultivator. 



Geographical Distribution. A genus of a single species, native of 

 damp t copses, &c, in the Northern United States, and often cultivated to 

 form light and delicate bowers in shady places. 



PLATE 51. Adlumia cirrhosa, Rqf. ; — branch with a single leaf and 

 panicle, natural size. (Cambridge Botanic Garden.) 



1. An enlarged persistent flower divided vertically, showing the stamens, 



with the anthers withdrawn from the cavity at the tip of the inner 

 petals, and the included capsule, one of the placentas towards the 

 eye. 



2. A flower, at an earlier stage, with the sepals still present, cut across 



towards the summit, enlarged. 



3. Diagram of the flower ; the two exterior lines representing the sepals ; 



the next the outer, the others the inner pair of petals, as they 

 would appear in a cross section at their free summits : the inclosed 

 rounded figures represent the anthers, three in each set, and the 

 central figure is a section of the ovary. 



4. Anthers of one set, magnified; seen from the outside. 



5. Vertical section of the ovary, magnified, showing the ovules. 

 C. Transverse section of the same, in the same position. 



7. The replum, enlarged, with two seeds attached. 



8. A seed, magnified. 



9. Vertical section of the same, showing the albumen and the embryo. 

 10. Embryo, detached, and more magnified. 



