460 COMPOSITiE. 



series, these subtended by many imbricate smaller ones. Keceptacle 

 naked. Rays none. Corollas with long tube, and lanceolate-linear 

 spreading lobes which much exceed the open-campanulate throat. 

 Achenes oblong, terete, 8 — 10-nerved, with large epigynous disk. Pap- 

 pus very copious, of soft white capillary bristles. 



1. L, sqiianiatnm, Gray, Proc. Am. Acad. xix. 50 (1883); 1. c. viii. 290 

 (1870), under Linosyris, and ix. 207 (1874), under Tetradymia. Seedling 

 plants and young shoots floccose-tomentose, and with spatulate entire 

 leaves, these not found in the green and broom-like scaly-bracted 

 mature shriib of 2 — 4 feet high: heads 3 — 5 lines high, terminal on the 

 many branchlets. — From the Salinas Valley southward, in the Coast 

 Range hills and valleys. 



100. TETRADYMIA, De CandoUe. Low rigid canescently tomen- 

 tose shrubs, with alternate narrow entire leaves, and cymose-clustered 

 rayless heads of yellow flowers. Involucre long and narrow, of 4 or 5 

 bracts. Corollas with long tube, the narrow spreading lobes longer 

 than the campanulate throat. Achenes terete, short, 5-nerved, from 

 long-villous to glabrous. Pappus of fine and soft long capillary white 

 or whitish bristles. 



1. T. canesceiis, DC. vi. 440 (1837). Silvery-tomentose, 1—2 ft. 

 high: leaves narrowly linear or linear-lanceolate, ^2 — 1 in- long: heads 

 terminal in a corymbose cluster. — Dry hills of the eastern slope of the 

 Sierra both north and south. 



2. T. glabrata, T. & G. Pac. R. Rep. ii. 122, t. 5 (1854). Size of the 

 last, the tomeutum more cottony and less permanent: leaves rather 

 fleshy, glabrate in age, the primary ones linear-subulate and conspicu- 

 ously mucronate: heads, etc. as in the preceding. — East of the Sierra; 

 less common than the last. 



3. T. stenolepis, Greene, Bull. Calif. Acad. i. 92 (1885). Very white- 

 tomentose with appressed wool: longer leaves elongated, slender and 

 spinescent, others narrowly spatulate or linear subulate and short: heads 

 elongated, fully 14 iu. high, 5-flowered; bracts of involucre linear, rigid 

 and thick: achenes merely pubescent: pappus copious, rather rigid. — 

 Mountains of Kern Co. near Tehachapi, etc. 



101. LUINA, Bentltam. Cottony-woolly low suffrutescent plant with 

 many erect simple stems and alternate sessile entire but not narrow 

 leaves, and terminal corymbs of rayless heads of yellow flowers. Invol- 

 ucre campanulate, of 10 or 12 narrow rigid carinately 1-nerved bracts of 



