Arenaria 



CARYOPHYLLACEyE 



177 



Annual. Stem lax, procumbent, puberulous. Leaves linear or lanceo- 

 late or oblong-lanceolate, acute, narrowed to base, '5-3 cm. 1. Sepals 

 keeled, acuminate, about 4 mm. 1. Petals slightly longer or shorter than 

 the sepals, rarely absent. Seeds lens-shaped, smooth, less than 1 mm. in 

 diam. 



Fig. GS— Arenaria lamiginosa Rohib. 



A, Apex of branch x j. 



B, Flower X 4. 



C, Capsule open x 4. 



D, Seed cut lengthwise x 8 ; e, endo- 

 sperm ; c, cotyledons ; r, radicle. 



3. CERASTIUM L. 



Herb. Flowers in terminal dichotomous cymes, often 



contracted. Sepals 5. Petals 5, 2-fid. Stamens 10, Ovary 



1 -celled; styles 5, distinct from base, opposite the sepals. 



Capsule cylindrical, dehiscing at apex by 10 teeth, many- 

 seeded. 



Species about 100, natives of the whole world, but confined 

 to mountains in the tropics. 



C. viscosum L. 8p. PZ. 437 (1753) ; Gren. Cer. 25; Ch-lseb. 

 Fl. Br. W. Ind. 55; BoUh. in Fl. Bras. xiv. pt. 2, 279. 

 C. glomeratum Thuill. Fl. Paris, ed. 2, 226 (1799); Syme Engl 

 Bot. ed. 3, a. 82, t. 221. C. spathulatum Pers. Syn. i. 520; 

 Mac/. Jam. i. 55. (Fig. 69.) Type in Herb. Linn. 



. Mouse-Ear Ohickweed. 

 Catherine's Peak, Macfadyen ; March; Blue Mt. Peak, J.P. 2028, 



N 



