CARYOPHYLLACE^E. 



123 



Hab. Organ Mountains, and Rio Janeiro, Brazil. Luzon, Philip- 

 pine Islands; in mountains near Manilla: doubtless introduced, 



2. Drymaria rotundifolia, Sp. Nov. 



D. glaberrima; mule erecto gracili; foliis orbiculatis vel subrenifor- 

 mibus sessilibus; stipidis obsoletls ; cyma corymbosa pluriflora; pedi- 

 celUs (fructi/eris erectis) alaribus flore vix duplo longioribus ; sepalis 

 ovalibus obtusissimis petalis paullo brevioribus, 



Hab. Obrajillo, Andes of Peru ; common. 



Stems 4 to 8 inches, according to Dr. Pickering's notes sometimes 2 

 feet high, from an annual root, slender, entirely glabrous, erect, more or 

 less branched. Leaves roundish; the upper somewhat reniform or 

 subcordate and broader than long, closely sessile, sometimes mucronate- 

 acuminate; the lower verging to obovate and more or less contracted 

 at the base, but sessile or nearly so; all glabrous; the cauline ones 3 

 lines long, by 5 or 6 wide, those of the branches smaller. Stipules 

 obsolete, or of one or two very minute setse on each side, deciduous. 

 Cymes corymbose, terminating the stem and branches, on filiform gla- 

 brous peduncles 6 to 10, or rarely 18 lines long, 7^15-flowered; the 

 small flowers rather crowded. Pedicels slender, glabrous, or very 

 minutely glandular-puberulent, all erect both in flower and fruit ; the 

 central ones 2 to 4 lines long ; the others only one or two lines long. 

 Bracts ovate-lanceolate, entirely scarious and glabrous, minute. Calyx 

 entirely glabrous, a line and a half long; the sepals oval, very obtuse, 

 somewhat carinate at the base, thin, inconspicuously three-nerved, 

 the margins narrowly scarious. Petals about one-third longer than the 

 calyx, narrowly cuneiform, white, two-cleft to a little below the middle ; 

 the lobes narrowly spatulate ; the claw entire. Stamens 5, half the 

 length of the petals. Style three-cleft to the middle. Capsule ovoid, 

 chartaceous, slightly longer than the calyx, three-valved. Seeds 9 or 

 10, reniform ; the testa muricate with rows of small tubercles. 



This species is nearly allied to Drymaria glaberrima, Bartl. in 

 Presl, Eel. Haenk. (which the late Mr. Matthews collected at Hua- 

 mantanga) ; but that has acute or pointed leaves, and acute sepals, 

 while in our plant they are remarkably obtuse. 



