XXXV. CRASSULACE.^ 



155 



hn<r as the calyx. Arenarla media L. A. marina Sm, (not 

 Oel) : E. B. t. 958. Alsine M, et K. 



Frequent upon the sea-coast, $ ox %. 6 — 



8, Longer and stouter 

 in all i^ts parts' than the last, and with an almost woody rooL Stems 

 and hranches compressed, except at the base. Leaves varying from 

 obtuse, with or without a point, to acute on the same specimen. We 

 are not sure that this is specifically distinct from the last ; our a. ism 

 some measure intermediate. 



6. Spergula Linn. Spurrey. 



Sep. 5. Pet 5, as long as the calyx, ovate, entire. Stam. 

 5—10. Styles 5, alternate with the sepals. Caps, many-seeded, 

 with entire valves opposite to the sepals.— Named from spargo, 

 to scatter, from the seeds being widely dispersed. 



1. S. arvensis L. {Corn S.) ; leaves subulate linear nearlj- 

 cylindrical, stipules minute, flowers panicled, seeds slightl) 

 compressed with a narrow margin tubercled or papillose. -E, ^- 

 t. 1535. S. pentandra Sm. : E. B. t. 1536. 



Corn fields, too frequent, especially on light stony soils. ©. 6 

 Stems 6—12 inches high or more, swollen at the joints.^ Leaves 1—2 

 inches long, narrow, glabrous or pubescent, in two fascicles from each 

 node, spreading in a whorled manner, Pttnh white, rather longer 

 than the calyx. Stamens often 5. Seeds never, we believe, quite 

 smooth as Smith describes them in his S. pentandra. The true 

 S. pentandra L. {Arenaria flaccida Roxb.) is said to have been 

 formerly found in Ireland by Sherard ; but this requires confirmation: 

 it has perfectly smooth seeds and a very broad membranous striate 

 border, but may be merely a variety of S. arvensis. 



8. 



Ord. XXXV. CRASSULACE^ De Cand. 



Sepals 3—20, more or less cohering at the base. Petals as 

 many as the sepals sometimes cohering, inserted (as well as the 

 stamens) at the base of the calyx (subhypogynous). 'Stamens as 

 many as petals, or twice that number. Ovaries verticillate, as 

 many as petals, each usually with a small flat scale or gland at 

 its base, 1-celled, tapering into a stigma. Follicles with several 

 seeds fixed in a double row to the ventral suture. Albumen 



fleshy thin. 



/' 



* Stamens as many as the petals and alternating. 



\. TiLL^A, Stamens 3-4. 



** Stamens twice as many as the petals or opposite to them. 



2. CoTYi.EDON. Petals miited into a tubular or campanulate corolla. 



3. Sejipekvivum. Petals distinct or nearly so. Hypogynous glands 



laciniated, or toothed or wanthig. 



4. Sedum. Petals distinct. Hypogynous glands entire or emarginate. 



H 6 



