Sedum,] CRASSULACE^. 237 



F 



Radix lig;nosus fusifonnis in terram longe descendens,superne divlsa et caules vel ramos iterum dichotome 

 divisos numerosos densissime caspitosos undique foliosos gerens. Folia opposita, iiifenom brevia, liiiearia, 

 erecta, imLricata, obtusa, stipulis tecta; superiora lon^iora subulata, recurva, acuta et etiam mucronata 

 stipulis breviora; omnia crassiuscula rigida striata vix nervosa, integerrima. StipnltB oblon^ie profimde 

 bifidie, albne, scariosie, membranacose, ssepe lacene. Flores omnino sessiles in apicibus ramorum, foliis fere 

 immersi soUtarii. Calyx profimde 5-partitus, cartilagineus, pallide viridis; sej^mciitiii sou laciiiiis oblou^as 

 canaliculatis, apiue intus cucullato-incurvis extus in acumen loiigiuu seu aristam attenuatis. Petala (seu 

 potius iilaraeuta) abortiva 5, in axillis lacinianim staminibus alternantia. Stamina 5, laciniis opposita. 

 Filamenta subulata. Antherce oblongae. Germen globosum pnl)oscens. Oin/hmi 1, ex apice funit-uli longi 

 erecti apice incurvi pendens. Stylus filiformis longitudine fere calycis. Sti(jma bifidum. 



Hab. Dry banks of the north branch of the Saskatchawan : between Carlton House and Edmoutou 

 House : kit. 52P. Korth. Drummond. — IVIr. Nuttall, Mho has admirably characterised tliis species of Parony- 

 chia, discovered it on the highest hills of the Missouri, near Fort Mandan, 4° or 5° south of the country 

 where Mr. Drummond gathered it : it is therefore probably not uncommon on the eastern slope of the 

 Rocky Mountiiins. — PVofessor De Candolle has not rightly understood Mr. Nuttall's exprtsslun, " internal 

 points of the calyx arched, external capillary attenuated." It is not " calycis lobis interiiis arcuatis externis 

 attenuatis," as in the Prodi'omus ; whence our learned; friend has been led to suppose that the segments were 

 unequal, and to express an opinion tha^tthe sf^pcies should belong to the third section, which is so charac- 

 terised : whereas the segments arc perfectly equal. 



Tab. LXXV. Paronychia scssili^ora. FijTl, Portion of a flowering-stem; Jig. 2, Apex of a branch, with 

 a flower; Jig, 3, Flower laid open to show the stamens, abortive filaments, (petals, D C.) and pistil; Jig. ^, 

 Pistil, with the germen cut open to show the ovule and seed-stalk; Jig, 5, Leaves from the lower part 

 of the stem and stipules ; ^g. 6, Single leaf from the same ; ^g. 7, Leaves from near the extremity of a 

 branch and stipules ; fig. 8, Single leaf from the same : — more or less magnijied. 



Ord. XXXIX. CRASSULACE^. DC. 



I. SEBUM. JOe Cand, 



Calyx S-partitus, sepalis ovatis saepius turgidis foliiformibus. Petala 5 stepius patentia. 

 Stam, petalorum numero duplo. Squamce nectarijerce integrze aut vix ac ne vix.cmarginatse. 

 Carpella 5. — Herbae aut svffrutices, Caules scepius ad basin ramosL Surculi steriks folia 

 conferta gerentes. Folia alterna rarius opposita, carnosa^ teretia aut plana, integerrima, 

 rarius dentata. Flores cymosi, nunc albi-purpurei aut cmrulei nuncflavi^ in nonnullis ^~aut 

 Q-^-petali etideo S-aut \2-l4^-andri, sed tunc species Sempervivo distincect sqiiamis integris 

 et habitu, 



* Planifolia, Jloribus luteis. 



\. S. Rhodiola; foliis oblongis apice serratis glabris, radice subtuberosa, caule siinplici, 

 fioribus subcorymbosis ssepius tetrapetalis abortu dioicis. De Cand. FL Fr. ed. 3. r. 4. /a 

 386. PL Grass, t. 14.3. Torrey^inPl, of Pocky Mount, p. 206, — Rhodiola rosea. Zmw. Sp. 

 PL p, 1465. EngL Bot. t 508. 



Hab. Arctic Sea-shore, Vr. RicJiardson, and islands. Sir E. Parry. Newfoundland and T^brador. Dr. 



Morrison. This was first ascertained to be a native of America by Br. Torrey, on the authority of Br. James, 



who found it in the more southern ranges of the Rocky Mountains. 



2. 5. spathulifolium ; glabrum, caule erecto, foliis obovato-spathulatis planiusculis ac\itis 



2F2 



' ^? 



