HESPERIS 



HETERANTHERA 



1479 



HESPERIS (Greek, evening, same root as vesper; 

 flowers more fragrant at evening). Cruciferse. This 

 includes the dame's rocket, a vigorous old-fashioned 

 hardy herbaceous perennial. 



Herbs, biennial or with a st. that is perennial at the 

 base, pilose, the hairs simple, forked or glandular: st.- 

 Ivs. usually sparse, 

 ovate or oblong, entire, 

 dentate or lyrate: fls. 

 white or purple, in 

 loose racemes, often 

 fragrant ; petals 4, long- 

 clawed; stigma lobed 

 and erect: pods long, 

 linear, cylindrical or 

 nearly so; seeds in 1 

 row in each cell, usu- 

 ally wingless. The 

 genus is allied to the 

 stocks, but has a some- 

 what different habit 

 and the cotyledons in- 

 cumbent not accum- 

 bent. Species about 2 

 dozen in the Medit. 

 region to Cent. Asia. 



matronalis, Linn. 

 ROCKET. SWEET 

 ROCKET. DAME'S VIO- 

 LET. DAMASK VIOLET. 

 Fig. 1826. Lvs. ovate- 

 lanceolate, 2-3 in. long, 

 toothed: pods 2-4 in. 

 long, straight, much 

 contracted between the 

 seeds. Eu., N. Asia. Escaped from 

 gardens. Gn. 53, p. 293; 49, p. 339 

 (a lovely garden view). Forms 

 clumps 2-3 ft. high, branched from 

 the base, and covered with showy 

 terminal pyramidal spikes of 4- 

 petaled fls. resembling stocks. The 

 colors range from white through lilac 

 and pink to purple. The double 

 forms are most popular. The plant 

 blooms from June to Aug., and has 

 long been cult, in cottage gardens. 

 The ordinary single forms are not 

 worth growing in the border, but 

 may be used in wild gardens. The 

 double rockets are amongst the best 

 hardy plants, very productive of 

 bloom and useful for cutting. The 

 double-fld. white, var. alba-plena, 

 Hort., very fragrant, is much prized. 

 G. 25:283; 28:701. Gn. W. 22. suppl. Apr. 29. Var. 

 purpilrea, Hort., is a purple-fld. garden form.^ Var. 

 pumila, Hort., is a dwarf form. Var. nana candidissima, 

 Hort. , is a pure white garden form. WILHELM MILLER. 



L. H. B.f 



HESPEROCALLIS (Greek, evening beauty). Lili- 

 aceae. Leafy stemmed bulbous plant of the Colorado 

 desert, and the desert sections of southern California, 

 sometimes planted in California and elsewhere. 



Of the tribe Hemerocallidea?, and characterized by 

 Watson as having a large white perianth cleft to below 

 the middle, the segms. several-nerved: anthers linear: 

 caps, ovate-oblong, deeply lobed : fls. few in a raceme, 

 the stout pedicels jointed at the top; seeds many, 

 horizontal, flattened, black. One species. 



undulata, Gray. Bulb large, corm-like: st. stout, 

 1-2 ft. high, 5-8-fld. : Ivs. linear, fleshy, keeled, 3-6 lines 

 wide, wavy margined: fls. 1H~2 in. long; style exserted: 

 caps. l /ivs\. long. The fls. very fragrant, waxy-white or 

 greenish; bulb should be deeply planted. L. H. B. 



1826. Dame's Rocket 

 or sweet rocket 

 Hesperis matronalis. 



HESPERO CHIRON (Greek, hesperps, originally 

 evening, but here western, i.e., in the direction of the 

 setting sun, and Chiron, a centaur distinguished for his 

 knowledge of plants; hence "Western Centaury," these 

 plants being at first placed in the Gentian family). 

 Hydrophylldcese. Northwest American tufted peren- 

 nial herbs with scapes bearing solitary, rather large 

 whitish flowers, % inch or less long. The nearest allied 

 genera of recognized garden value are Phacelia and 

 Emmenanthe, which are very distinct in color of 

 flowers, general appearance and cymose inflorescence. 



Dwarf, stemless perennials or possibly biennials: 

 peduncles all radical and 1-fld.: Ivs. entire, spatulate or 

 oblong: fls. purplish or nearly white, with parts nor- 

 mally in 5's rarely in 6's to 7's; style 2-cut: caps. 1- 

 celled, loculicidal, 15-20-seeded; seeds minutely netted 

 or wrinkled. Two species that have been procurable 

 through Calif ornian specialists and collectors. 



A. Corolla-lobes shorter than the tube. 

 calif ornicus, Wats. (Capnbrea nana, Raf.). Lvs. 

 numerous in a radical tuft: corolla somewhat oblong 

 bell-shaped. Hills and meadows, Utah to Wash, and 

 Calif. H. latifblius, Kellogg, is a large form. B.R. 

 833 (as Nicotiana nana). 



AA. Corolla-lobes longer than the tube. 

 pumilus, Porter (Capnbrea pumila, Greene). Lvs. 

 fewer: corolla nearly wheel -shaped; tube densely 

 bearded within. Springy and marshy grounds in mount- 

 ains, Idaho and E. Wash, to Calif. 



WILHELM MILLER. 



HESPEROSCORDUM: Brodixa. 



HESPEROYUCCA (Latin, western yucca). 

 Liliacese, tribe Yuccese. Yucca-like nearly 

 acaulescent plants, forming a very character- 

 istic feature of the coast-range flora of Cali- 

 fornia when in bloom. Hardy only in mild 

 regions: frequently planted out-of-doors like 

 yuccas in California, but elsewhere requiring house 

 protection. Cultivated much like agaves. 



Leaves narrow, rigid, pungently pointed, rough- 

 edged: infl. panicled; fls. vespertine, cup-shaped as 

 in Yucca, usually white; filaments clavate, attached 

 to base of perianth; pistil with short oblong ovary, 

 abrupt slender style, and fimbriate capitate stigma: 

 caps, incompletely 6-celled, 3-valved through the 

 laciniate false septa; seeds thin, flat and smooth. 

 Only the following species: 



Whipplei, Baker (Yucca Whipplei, Torr. Y. gramini- 

 fblia, Wood. Y. Ortgiesiana, Roezl. Y. californica, 

 Groenl.). Simple or cespitose: Ivs. more or less 3-sided, 

 finely striate, rough-edged, J^in. x 1-3 ft., glaucous: 

 infl. 6-15 ft. high, oblong, long-peduncled, glabrous; 

 fls. nodding, fragrant: caps, broad, 2 in. long. S. Calif. 

 G.C. II. 6:197. Gn. 35, p. 561. R.H. 1886, p. 63. 

 B.M. 7662 Rep. Mo. Bot. Gard. 3:11, 12, 54; 4:17, 

 23; 13:4, 5, 85. With extremely glaucous Ivs. it is 

 var. glauca, Hort. With decidedly violet-shaded fls. it 

 is var. violacea (Y. Whipplei violdcea, Andre 1 ). R.H. 

 1884:324. G.C. III. 39:154; 51:106 and suppl. With 

 flatter, broader and smoother-edged Ivs. it is var. mtida 

 (Y. nitida, Wright). G.C. III. 39:153. G. 30:33. Gn. 

 69, p. 161. WILLIAM TRELEASE, 



HETERANTHERA (name refers to the unlike or 

 different anthers). Pontederiacese. A few American 

 bog herbs, one of which now and then occurs in horti- 

 cultural literature. Sts. creeping, ascending or floating: 

 Ivs. long-stalked, grass-like or the blades ovate, oval or 

 reniform: fls. white, blue or yellow, small, arising from 

 the sheathing base of the petiole; perianth with slender 

 tube, the segms. narrow and nearly or quite equal; sta- 

 mens 3, unequal or equal: fr. a 1-celled or 3-celled caps, 

 inclosed in the withered perianth-tube. H. limbsa, 

 Willd., has blue fls. : spathe 1-fld. : Ivs. oblong to lance- 



