&$§ GIBBIFLORE.—Inflorescence compound. Sepals linear, unequal. 
Corolla red, decidedly pentagonal. 
Flowers in bifid or trifid racemes. 
Leaves terete : : 5 . : : . 982. subulifolia. 
Leaves flat, spathulate. 
Leaves of main stem scattered, 2—8 inches long. 18. bracteolata. 
Leaves of main stem rosulate, 6—7 inches long . 19. Scheer. 
Flowers in short cymose panicles. 
Flowers 4—6; leaves 830—40 in a rosette : . 20. stolonifera. 
Flowers 19—20 ; leaves 8—15 in a rosette. 
Leaves slightly crisped at the edge when old . QL. fulgens. 
Leaves much crisped at the edge when old . - 22. retusa. 
Flowers in elongated narrow panicles. 
Leaves obovate-lingulate, 2—3 inches long . . 33. Grayt. 
Leaves obovate-spathulate, 4—5 inches long . 04. acutifolia. 
Flowers in a lax thyrsoid panicle, with long horizontal lower branches. 
23. gibbiflora. 
S§$S§ Caspirosm.—Inflorescence compound. Sepals lanceolate or deltoid, 
equal, ascending, 2—6 times shorter than the corolla, which is 
scarcely at all pentagonal and usually pale yellow. 
Flowers in long bifid or trifid racemes : . 24. pulverulenta. 
Flowers in cymes. 
Cymes 4—6 flowered; leaves very thick, spine pointed. 
25. agavoides. 
Cymes 20—40 flowered ; leaves 13—2 lines thick, not aristate. 
Stem-leaves few, lanceolate ; branches of cyme erecto-patent. 
26. cymosa. 
Stem-leaves many, small, cordate-amplexicaul; branches of cyme 
scorpioid. 
Leaves pale glaucous-green - 5 . 27. caespitosa. 
Leaves glauco-farinose_. : ; . 28. californica. 
Leaves quite white, with palvoriere mealiness. 29. farinosa. 
—J. G. B. 
