460 PATAGONIAN EXPEDITIONS : BOTANY. 



2. CHRYSOSPLENIUM Linn. 



Low semiaquatic herbs with petiolate, broad, crenate leaves, and per- 

 fect, minute, greenish flowers. Calyx-tube obconic, adnate to the ovary. 

 Petals none. Stamens 8-10 (rarely 4-5). Ovary i -celled. Styles 2. 



Species 15, in N. Temperate region, and Extra-trop. S. Amer. 



I. C. MACRANTHUM Hook. 



Creeping, glabrous. Leaves opposite, ovate-cordate, obtuse. Peduncles 

 terminal, bracted, 3-flowered. Flowers rather large, 2-3-carpellary, the 

 mid-flower sessile. 



E. & W. Magellan ; Fuegia to Cape Horn. 



2. C. VALDIVIANUM Hook. 



Creeping, glabrous. Leaves opposite, oblong-rotundate, obscurely sin- 

 uate, subtruncate at base. 



(Valdivia, in Chili) ; Fuegia, near Cape Horn. 



3. DONATIA Forst. 



Mosslike, cespitose herbs, glabrous and fleshy, with short, compact 

 branches, narrow, alternate, imbricating entire leaves, and white, solitary, 

 sessile, terminal flowers, often unisexual. Calyx-tube adnate, bearing a 

 subulate bractlet and remote subulate segments. Petals about 8, linear, 

 white, inserted on the calyx-tube. Stamens 2-3 (-4) epigynous, extrorse. 

 Styles 2-3, stigmas globose. 



Species 2, one in Tasmania and N. Zeal, the other in S. Chili to Cape 

 Horn. 



D. FASCICULARIS Forst. 



Stamens 3, alternating with 3 diverging styles. 



(Fig. in Eng. & Prantl, iii. 2a. p. 67, A-C.) 



S. Chili ; Chonos Archip. Fuegia. "Abundant as a bog-plant, in green 

 patches, having with it Accena pumila, Gentiana patagonica or G. gracilis, 

 Drosera uniflora, and Tetronciwn magellanicum." " Fmit capsular, rather 

 fleshy; circumscissile, with few (1-3) globose seeds in each locule." 

 (Speg.) 



4. HYDRANGEA Linn. 



Shrubs or trees, with opposite, simple leaves, 4~5-valvate petals, 8-10 

 stamens, inferior ovary and capsular fruit. Some of the flowers may be 



