34, CEASSULACEiE. 137 



Order XXXIV. CEAS8UIACEJE. 



Sep. 3 — 30, more or less united at i^e base. , Pet. the same 

 mimber, free or slightly connected,^ inserted at the base of the 

 calyx. Stam. inserted witli the pet. and the same or twice their 

 number. Hypogynous SQales 1 at the base of each carpel or 

 inconspicuous. Carpels the same numbel? as and opposite to the 

 pet., free or slightly connected, 1-celled. Fr. of several follicles 

 opening on their fao6, with slightly albuminous seeds on the 

 inner suture.' 



1. Tii.l.s;a. Sep., pet., and stam. 3 — i. Carp. 3 — 4, con- 

 stricted in the middle and 2-seeded. Hypogynous scales 0. 



2. Sbdum. Sep. and pet. 5, rarely 4 or 6. " Stam. 10 or 12. 

 Hypogynous scales entire. Carp. -5 or G, majiy-seeded. — 

 S. ithodiola has 4 sep., 4 pet.> 8 stam., .4 carp., and is sub- 

 dioecious. 



[3. Sempbkvivum. Sep. 6 — 10. Pet. the same. Stam. 



twice as many as the pet. Hypogynous scales laciniate. 



Carp, as many as the petals.} 



4. OoTYliEBON. Sep. 5. Pet, cohering iifto a tuJmdar S-cleft 



corolla. Stam, 10, inset-Ud on the corolla. Hypogynous 



., scales 3. Carp. 5. 



1. Tillsi'a Linn. 



1. T. muscdsa (L.) ; St. branched and deftumben^j at the base, 

 fl. axillary sessile trjM.— JS. £. 116. -R- Z t. 191.— Very mi- 

 nute, about 1 in. long, reddish. L. opposite, oblong, blunt, 

 concave abo'>;e, connate. Sep. ovate or lanceolate, acute, bristle- 

 pointed' Pet. nearly, subulate, white i tipped with red.-7-On 

 barren sandy heaths in the South and East. A. VI. VII. E. 



2. Se'dttm Idnn. Stonecrop. 



* Soot thick, many-headed. Leaves flat, 



t Flowers yellow, subdioecious, 4-parted. KHoiJiolA Linn. 



1. S.Rhodiota (DC.) '; root fleshy, 1. oblong smooth. — Bhodiola 

 rosea'Sm. — Fl. in a compact terminal cyme, subdioecious: Stam. 

 8. L. acuminate, usually dentate in their upper half. Rhizome 

 large, having a remarkable smell.- St. 6 — 8 in. high, simple. — 

 ;^e< alpine rocks. P! VI. Vn.'i2ose-r^oi., , ., E. S. I. 



tt Flowers white or purple, perfect,, 5-parted. 



2. S. TeUphitlm (Jj.) ; uppermost I. long-oDal' ienia,t& rcmnded 

 at: the, base atid. sessile, lower 1. obovate pr, qblpng nari'owed.be- 

 low, corymb dense, ovaries ■&iitte:riei and. s^ightlj furrowed on the 

 hack. — R. I. 968.t-St. 1^2 feet high. L. large, often orbicular. 



