26 



ELATINACE^E. 



P O RTUJL AC ACE^E . 



Succulent herbs, with simple and entire leaves, 

 and regular but unsymmetrical perfect flowers; 

 the sepals only 2, the petals 2 to 5 or more; the 

 stamens opposite the petals when of the same 

 number: the ovary 1-celled. Stamens sometimes 

 indefinitely numerous, commonly adhering to the 

 base of the petals, these sometimes united at the 

 base. Style 2-8 cleft. Stipules none. Key to 

 genera and species, p. 96. 



CALANDBINIA. 



Calandrinia Howellii, Wat., is distinguished 

 from C. cotyledon by narrower leaves, with sca- 

 rious margin crisped. ' 



Calandrinia elegans, Spach., is the larger, 

 stouter form of C. Menziesii, Hooker. Greene 

 confines the latter to the very small-flowered 

 dwarf form. 



CLAYTONIA. 



Claytonia spathulata is equivalent to C. 

 gypsophiloides of Bay-Reg. Bot. It has rose- 

 purple petals, three times as long as the calyx. 

 C. exigua is probably C. spathulata of Prof. 

 Greene's book. He adds C. nubigena, which 

 is described as similar to C. perfoliata, but 

 smaller, with linear radical leaves. 



C. Hallii. Gray, comes next to C. Chamissonis. Leaves, 2 or 3 pairs: seeds 1 or 2. 



For C. Nevadensis substitute C. asarifolia, Bongard. 



Perhaps Claytonia and Montia will be united under the latter (older) name. 



Spraguea, too, for a similar reason may be merged in Calyptrideum. C. tetra- 

 petatum of Bay -Reg. Bot. is C. quadripetalum of this book. 



Montia parvifolia, Greene, has petioled leaves and larger flowers than M. fon- 

 tana. 



Low annuals growing in water or wet ground, 

 genera and species, p. 98. 



ELATINACEJE. 



Flowers minute, axillary. Key to 



