PATAGONIAN EXPEDITIONS: BOTANY. 

 252 



VALENTINIA Speg. 

 r.lvx Carted with lanceolate lobes, not enlarging after flowering. 



S fleshy obovate, orbicular, decussate. Rowers smaU, in s lm ple or 

 -j-partite cymes. 



V. PATAGONICA Speg. 



The difference of habit and the appressed fleshy leaves mark this. 

 Fruit with scanty, fleshy exocarp and no endosperm. 



Patagonia, by Rio Chubut. 



Insert after CandoUeacea, p. 75^, after line 18 of the page: 



Mildbraed on the Stylidiacece shows that we must amend our d< 

 tion of this family, so as to admit the genus Donate, hitherto referred to 

 the W Vacl, P- 46o). Though Donatia is chonpetalous, and 

 stamfns te free from the style, and the Patagonian plant has trimerous 

 andr^um, and tricarpellary ovary, it appears to belong to the family of 

 the Stylidiacece; so that the characters of the family must be 



Calyx adnate to the ovary; corolla rarely chonpetalous generally 

 sympetalous and more or less zygomorphous ; stamens rarely 3-2, ar 

 free mostly 2 and coalescing with the style into a styhdmm; anthers 

 always extrorse ; ovary rarely s-merous, generally 2-mei 



STYLIDIACE^E. 



Are allied to Campanulaceae, differing by having irregular flowers, with 

 3-2 stamens connate with the style into a column ; leaves often spuriously 

 whorled. (Chiefly in Australia, and the Pacific Isles.) 



Sueecstive gradations are observable, as epigynous glands represci 

 ing absent parts, and the approximation of stamens to the style in the 

 New Zealand genus Donatia, being a step towards their coalescence as 

 in the other genera. The Patagonian, and the New Zealand-Tasrnaman 

 forms of Donate, exhibit the parallelism, and at the same time 

 tion of numbers of parts ; thus 



Stamens 3 ovary 3 -celled. Antarctic American. Donatia fasciculans. 



lumens a, Z Lelled. New Zealand, Tasmania. /> * <*"** 



