314 CRABSULACE^. (ORPINE FAMILY.) 



T. ]iiU8CO§a, L. .02 to .03, stems simple or sparingly branch- 

 ed, flowering from base. Leaves oblong-lanceolate, mucronate, connate 

 at base. Flowers axillary, sessile ; calyx-lobes lanceolate, mucronate — 

 March and April — Rocks and damp walls; along coast, and hill coun- 

 try to 1000 m. 



Var. trichopoda, Post. Flowers with pedicels, at length as 

 long as they. {T. trichopoda^ Fenzl.) 



2. UIWBILICUS, D.C. Umbilicus. 



Calyx 5-parted. Corolla tubular, campanulate, or urn-shaped, more 

 or less deeply 5-cleft. Stamens 10, inserted on tube of corolla. Carpels 

 5, many-seeded. Perennial or annual herbs, with various habit. 



* Root-leaves petioled, not imbricated. Flowers spiked. 



t Root-leaves reniform-cordate or sub-peltate. Flowers ascending. 



1. U. erectu§, D.C. If .4 to .8. Stem-leaves minute, sub-sessile, 

 ovate, acutely dentate. Flowers ascending, forming a simple or 

 branched spike, .3 to .4 long ; bracts linear-lanceolate, longer than 

 pedicel ; corolla yellow^ .012 long, obconical-tubular, 4-5 times as long 

 as calyx, cleft to middle into lanceolate, acuminate lobes — July — 

 Shady rocks ; lower and middle Lebanon and Hermon, and northward. 



1 1 Root-leaves peltate, repand-crenate. Flowers horizontal or pendulous. 



2. U. pendiilinus, D.C. Pennywort. Navelwort. 2f .2 to .5. 

 Upper stem-leaves oblong-cuneate to oblong-linear and linear-subulate, 

 scattered. Flowers pendulous or horizontal, in a simple or branched 

 spike ; corolla yellowish-white, tubular, four times as long as calyx, 

 cleft for one-fourth its length into ovate, acute lobes — Spring — 

 Clefts of damp cliffs and walls ; common throughout. 



Var. g^enuiiiui. Pedicels pendulous, longer than bracts. 



Var. intermediui. Pedicels pendulous, shorter than bracts or 

 0. {U. intermedius, Boiss.) 



Var. horizontalls. Pedicels horizontal, shorter than bracts, or 

 0. (U. horizontalis, Guss.) 



* * Root-leaves sessile, imbricated as in the House LeeJs. 



3. U. L.ibanoticus, Labill. Ij! .1 to .3, glandular-pube.scent. 

 Lower leaves spathulate, obtuse ; stem-leaves the same, or linear-oblong 

 to obovate-oblong. Panicle more or less dense thyrsoid, or loose 

 cymose ; pedicels shorter than calyx ; corolla pink to purple, cleft to 

 beyond middle into oblong-lanceolate, mucronate lobes — May to 

 August — Clefts of rocks ; common throughout. A variable species, 

 perhaps to be referred to U. Sempervivum, L. 



Var. g^enuinus. Green. Root-leaves cuneate, tapering at base. 

 Corolla scarcely cleft to middle. 



Var. eonniTens. Corolla-lobes lanceolate, acute, at length 

 plicate, connivent. (U. globularisefolius, Fenzl.) 



Var. Pestalozzse. Glaucous. Rosette of root-leaves dense, 

 short, margin of leaves obsoletely dentate. {JJ. Festalozzce, Boiss.) 



Var. lineatns. Green. Root-leaves loosely resetted, lingulate- 

 spathulate, ciliate. Corolla cleft to one-third its length into triangulax- 

 oyate lobes, striate. (U. lineatus, Boiss.) 



