54 TRANS. ST. LOUIS ACAD. SCIENCE. 



Var. ? ItBvigata is well characterized by its very long (30-40 inches, 

 10-15 lines wide), deep green, smooth, thickish, very sharp pointed leaves, 

 only 25-50 in number; lower third attenuated into a narrow stalk, leaf 

 therefore soon decumbent; epidermis cells 3 times as long as wide. Scape 

 8-10 feet high, smooth, purple below with lance-shaped bracts 6-9 inches 

 long; panicle half as long as peduncular portion, contracted, with com- 

 paratively few, sometimes slightly pubescent branches. Flowers often in 

 pairs, smaller than in last, 2i-3 inches wide, white with purple tinge, of 

 a strong almost disagreeable odor, which was not noticed in other va- 

 rieties; stigmas divided to the base, deeply bilobed. Capsules ii-2 inches 

 long; short pointed ; seeds 8J-9 mm. wide. This is the most common 

 species between Charleston and Hilton Head, on the sandy coast, but is 

 also found on the clayey soil up the rivers; it probably extends down the 

 coast to Florida, as I have seen a specimen from Tampa Bay, Fl., 

 about 2 weeks after the first and as long before the last form. A 

 transition form between this and the regular T. filamentosa is cultivated 

 in the Missouri Botanical Garden, with shorter, weaker-pointed leaves, 

 lanciform bracts and constricted capsules. 



II. Hesperoyucca : filamenta clavata, acuta, laevia, erecta, pistillo sublongiora ; 

 antherac didyma; transversa;; stylus tenuis, stigma calystra;forme papilloso- 

 pilosum ; capsula erecta loculicide triyalvis, valvis indivisis ; semina ut in 

 Chcenoyucca. — Planta acaulescens, folia margine serrulato-asperata, panicula 

 in scapo elata. 



12. Yucca Whipplei, Tor'rey, Bot. Mex. Boutid. 222 ; Hot. Exp. Ives, 

 29; subacaulis; foliis paucioribus e basi lata attenuatis lineari-subulatis 

 ssepe falcatis carinatis rigidis pungentibus laevibus glaucis; scapo bracteis 

 late vaginantibus sursum foliaceis pungentibus munito paniculamgrandi- 

 bracteatam la;vem gerente ; capsula globoso-obovata obtusa. 



California, on dry rocky hills, rare north of San Francisco, abundant 

 from Monterey to San Diego, eastward to the Cajon Pass and into 

 northwestern Arizona; fl. in April. — Trunk none or short, sometimes 

 prostrate between rocks, stoloniferous ; leaves 10-20 inches long, 4-6 lines 

 wide, concave only near the stout point; scape 4-12 feet high, together 

 with the lower part of the panicle itself, beset with bracts 6-9 inches long, 

 consisting of a broad whitish base terminating in a short rigid leaf. 

 Flowers greenish white, spreading 2 to 4 inches; segments ii-2i 

 inches long, 5-12 lines wide, outer much narrower than inner ones; an- 

 thers i-ii lines across; pistil 4-8 lines long; style proper slender, as long 

 as or much shorter than the ovary; trilobed hood-like stigma 3 times as 

 thick as style and longer than thick. Capsule less than i to nearly 2 

 inches long, frequently rough ; secondary dissepiments incomplete at both 

 ends, divided and often rent by the opening of the capsule; seeds 6J-8 

 org mm. in diameter, with a very narrow margin. — Most of the specimens 

 and numerous notes have been communicated by Prof. W. H. Brewer of 

 the California State Survey. 



