208 



CRASSULACE^E. Tilloea. 



incised: racemes short, 5 - 10-flowered, with mostly foliaceous bracts: flowers 

 golden-yellow, spicy-fragrant ; tube of the salverform calyx (half an inch or less in 

 length) three or four times longer than the oval lobes : stamens short : berry small, 

 yellowish turning blackish, mawkish. — Lindl. Bot. Keg. t. 125. R. tenuifiorum, 

 Lindl.liot. Keg. t. 1274. R. fragrans, Lodd. Bot. Cab. t. 1533. 



Bauks of streams, in the Coast Eanges and in tlie Sierra Nevada : extending to the eastern 

 side of the Roci<y ilountains. Common in cultivation in the Atlantic States and Europe. 



Order XXXV. CRASSULACE.^. 



Succulent or fleshy plants, mostly herbaceous, and not stipulate, with completely 

 symmetrical as well as regular flowers, the sepals, petals, stamens, and pistils all of 

 the same number (3 to 12) and distinct, or the stamens twice as many, and the 

 petals sometimes united into a tube, always free from the pistils, generally slightly 

 perigynous, and instead of a disk a series of hypogynous scales, one behind each 

 carpel ; these become follicles in fruit. Otherwise as in Saxifragacece. The one or 

 two exceptions are not Californian. 



An order of about 400 species in little over a dozen genera, of temperate and sulitropical re- 

 gions, most abundant in Europe and S. Africa, more fully represented in California than in the 

 Atlantic States. All are inert, with watery juice ; many are cuUivated for ornament, mostly for 

 the foliage rather than the flowers. 



Sempkuvivum tectorum, Linn., the Houseleek or Live-for-ever, of Europe, is often found 

 half wild about old houses : i)arts of the flowers mostly in twelves : leaves oval or obovate, 

 mucronate, on the flowering stems oblong and clammy-pubescent, as well as the clustered purple 

 or greenish flowers. 



1. Tillcea. Parts of the flower each 3 to 5 ; the stamens only as many. Small annuals, with 



opposite leaves and minute axillary flowers. 



2. Sedum. Parts of the flower each 4 to 7 ; stamens twice as many. Petals distmct. Low 



annual or perennial herbs, with cymose conspicuous flowers. 



3. Cotyledon. Parts of the flower in flves ; stamens 10. Petals somewhat united. Stout 



perennial herbs, or fleshy-woody at base, with showy spicate or racemose flowers. 



1. TILL.^A, Linn. 



Sepals and petals 3 to 5, distinct or united at base. Stamens as many. Carpels 

 distinct : styles short-subulate : ovides one to many. Seeds longitudinally striate. 

 — Small and slender somewhat succulent glabrous annuals ; leaves opposite, entire ; 

 flowers minute, axillary, mostly white. 



A cosmopolitan genus of about 20 species. In addition to the following, there is a single 

 species on the Atlantic coast and another in Texas. 



% Floivers clustered : 2->etals acuminate : hypogynous scales minute or none : carpels 

 1 - 2-seeded. — Till/Ea proper. 

 1. T. minima, INIiers. Diff'usely branched, 1 to 3 inches high, erect or ascend- 

 ing : leaves ovate to oblong, connate at base, acute, about a line long : flowers in 

 short leafy axillary panicles, nearly sessile or on pedicels a line or two long : sepals 



4. scarcely half a line long, oblong-ovate, acute, a little exceeding the linear-lanceo- 

 late acuminate petals : carpels not longer, acute : seeds usually solitary. — Torr. & 

 Gray, Fl. i. 557. 



Var. subsimplex, Watson. Branchlets more elongated, mostly from the base : 

 pedicels usually shorter. — T. UptojMala, Benth. PI. Hartw. 310. 



On sandy soils, in the rainy season, often abundant, from Sonoma Co. to San Diego ; Guada- 

 lupe Island, Fahner. Also in Chili, and very similar to the older T. vcrUcillaris, DC, of New 

 Holland, Tasmania, and New Zealand. Often reddish. 



