ALL AM AX DA 



ALLIUM 



247 



green; calyx spreading, lobes unequal, light green, 

 elliptic-ovate, 'sin. long; corolla rich golden yellow, 

 striped inside the tube with reddish brown; tube 2 in. 

 long, spreading upward with a swollen bulbose greenish 

 base; limb 1*4 in. diam., lobes orbicular or oval, obtuse 

 Vim., long. Brazil. B.M. 4.594. 



AA. Plant mostly tall climbing, in greenhouses usually 



trained on rafters: fl. not prominently enlarged at base. 

 B. Fls. purplf. 



violacea, Gardn. (A. Blanchetii, A. DC.). A slen- 

 der-growing climber: sts. long, slender, terete, green 

 tinted with red on side exposed to the sun, hairy: Ivs. 

 usually in 4's, almost sessile, elliptic, 4^-6 in. long, dull 

 green and covered with hispid hairs: infl. up to 1 ft. 

 long, loosely fld.; bracts small, J^in., lanceolate, pale 

 green; fls. in pairs, terminating each branch of the cyme; 

 pedicel J^in. long, hairy: calyx %in. diam., campanu- 

 late, lobes }-;>in. long, elliptic-ovate, inner pair smaller 

 than the rest, and lanceolate; corolla bright reddish 

 purple, tube 2 in. long, narrow and constricted in the 

 middle, upper part purple-red, middle part greenish 

 yellow, and lower part reddish brown, limb spreading 

 2-2 } in. diam., lobes orbicular, throat rich dark 

 reddish purple shading to yellowish white at the base. 

 Brazil. B.M. 7122. A fine handsome species, quite dis- 

 tinct from all other species and varieties in the color of 

 its fls. It is a poor grower on its own roots, but thrives 

 well when grafted on A. cathartica var. Hendersonii or 

 var. Schottii. 



BB. Fls. yellow. 



cathartica, Linn. Lvs. and calyx glabrous: plant tall- 

 climbing: Ivs. rather small, obovate, usually in 4's, 

 and more or less wavy-margined, thin, acuminate: 

 fls. golden yellow, white-marked in the throat, the lobes 

 acuminate on one angle, 3 in. or less across, the tube 

 gibbous or curved. S. Amer. B.M. 338. P.M. 8:77. 

 The type first described, but now rarely seen in cult. 



Var. n6bilis (A. nobilix, T. Moore). A strong, tall 

 climber, with purple twigs: Ivs. and calyx more or less 

 hairy: Ivs. in 3's or 4's, large, acuminate, very short- 

 ked: fls. very large (4-5 in. across), nearly circular 

 in outline of limb, bright, clear yellow, with magnolia- 

 like odor. Finest fls. in the genus. Brazil. B.M. 5764. 



Var. Sch6ttii, (A. Schottii, Pohl). Strong-growing, 

 suitable for rafters: young shoots and petioles slightly 

 pubescent, the older sts. warty : Ivs. in 3's or 4's, broadly 

 lanceolate and acuminate: corolla large, rich yellow, the 

 throat darker and beautifully striped. Brazil. B.M. 

 4351. A. magnifica, Hort., is a form of this. 



Var. Hendersonii (A. Wardleyana, Lebas. A. Hen- 

 dersonii, Bull). Fig. 155. Tall and vigorous, free-flower- 

 ing, excellent for roofs: glabrous: Ivs. large, elliptic- 

 ovate, thick and leather}-, in 3's. or 4's: fls. large, yellow- 

 orange, with 5 light spots in the throat, the corolla of 

 thick substance, purplish on the exterior when in bud. 

 Gn. 29:400. I.H. 12:452. The commonest allamanda 

 in this country. Intro, from Guiana by Henderson & 

 Co., St. John's Wood, England, and distributed by Bull 

 about 1865. 



Var. grandiflora (.4. grandiflora. Hook.). St. thin and 

 wiry: Ivs. thin, ovate-lanceolate, pointed, usually in 3's: 

 fls. somewhat smaller than those of var. A . Hendersonii 

 but larger than .-1 . cathartica, lemon- or primrose-yellow. 

 Brazil. Gn: 39:192. P.M. 12:79. Thrives well when 

 grafted on forms of A. cathartica. Plant rather bushy. 



Var. Wflliamsii, Hort. Habit slender, easily trained 

 into bush form or a dwarf cumber: sts. terete, slender, 

 wiry, dull green, bright red on side exposed to the sun, 

 covered with short hairs: Ivs. elliptic shortly petiolate, 

 usually in 3's or rarely in 4's, rich dark green above, pale 

 dull green below, hairy on both sides, especially along 

 the midrib on the lower side; petiole J^in. long, hairy: 

 infl. rather short: fls. in pairs at each joint of the 

 cyme; bracts much reduced, barely Am. long, acute; 



calyx erect, not spreading, sepals unequal, lanceolate, 

 or elliptic, J^in. long, green; corolla yellow, tube onjy 

 slightly curved 2J^ in. long, narrow and stalk-like in' 

 lower half, then broadening out and becoming cam- 

 panulate in upper half, upper side of the pouch suffused 

 with reddish brown, limb spreading, 2 in. diam., lobes 

 ovate, obtuse, %in. long, throat deeper shade of yel- 

 low and stained with reddish brown. Garden origin. 

 Gn. 40:468. L. H. B. 



C. P. RAFFILL. 



ALLEGHENY VINE: Adlumia. 



ALL-HEAL: Brunelta 



ALLIGATOR PEAR, AGUACATE: Avocado, Perm. 



ALLIUM (ancient Latin name of garlic). Liliacest. 

 Bulbous plants, mostly cultivated in the open, but a 

 few of them grown under glass as florist's flowers; and 

 comprising also the onions and their allies. 



Leaves flat, channelled, or terete and hollow: fls. in a 

 simple umbel, from a 1-2-lvd. usually scarious spathe; 

 stamens and perianth segms. 6, the perianth parts dis- 

 tinct or nearly so, 1-nerved, and often becoming dry and 

 persistent; style slender, the stigma either entire or 

 parted. Strong-scented plants, with fls. white, yellow, 

 or in shades of purple 

 and rose. There are 

 250-300 species in tem- 

 perate parts of the 

 northern hemisphere. 

 Numbers of species, 

 particularly the Asian, 

 are frequently seen in 

 botanic gardens and 

 choice collections, but 

 only A. Moly and A. 

 neapolitanum are com- 

 mon in this country 

 among the ornamental 

 species, and no attempt 

 is made to describe all 

 the species here that 

 are mentioned in gar- 

 den literature. For the 

 vegetable garden mem- 

 bers of the genus, see 

 Chives, Garlic, 

 Leek, Onion, Shal- 

 lot. In parts of 

 the northeastern 

 states Allium 

 vineale is a bad 

 weed; it has a 

 slender scape 

 sheathed below 

 with hollow 

 thread -shaped 

 Ivs., and green- 

 ish rose-colored fls. (orbulblets in the place of fls.). 



No special treatment is required by the alliums. 

 Most of the cult, forms are hardy spring bloomers, and 

 may be treated the same as other hardy border bulbs. 

 Propagation is by offsets and by the bulblets in the 

 umbel; also readily by seeds. 



INDEX. 



156. Allium fistulosum. (Plant X H) 



