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XXXV. CRASSTJLACEiE, 
\_Spergula. 
6. Sfergula 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 sub- 
cylindrical, stipules minute, flowers panicled, seeds slightly 
compressed with a narrow margin tubercled or papillose. E. B. 
t. 1535. S. pentandra Sm. : E. B. t. 1536. 
Corn fields, too frequent, especially on light stony soils. 0. 6 — 8. 
— 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, “ convex above, furrowed 
beneath.” Petals 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 Jlaccida 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. 
Ord. XXXV. CRASSULACEiE Be 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. — Herbs or shrubs, with fleshy leaves and no stipules. 
* Stamens as many as the petals and alternating. 
1. Tilljea. Stamens 3-4. 
** Stamens twice as many as the petals or opposite to them. 
2. Cotyledon. Petals united into a tubular or campanulate corolla. 
3. Sempervivum. Petals distinct or nearly so. Ilypogynous glands 
laciniate, or toothed, or wanting. 
4. Sedum. Petals distinct. Jlypogynous glands entire or emarginate. 
1. Till.e'a Linn. Tillsea. 
Cal. 3 — 4-partite. Pet. distinct, acuminate. Stam. 3 — 4. 
Follicles 2-seeded, constricted in the middle. Hypogynous 
glands obscure or wanting. — Named after Michael Angelo 
Tilli, an Italian botanist. 
1. T. muscusa L. ( mossy T .) ; stems branched and decumbent 
