102 



ARUM 



blade oblong-triangular or ovate-triangular : spathe 

 tube pale within, the limb 6-8 in. long, lanceolate-oblong, 

 and colored with large lenticular purple spots : spadix 

 short, included. Asia Minor. Runs into many forms, 

 with variously marked spathes. Pots. 



3. de truncation, Meyer. Lvs. more or less truncate at 

 the base, the blade shorter than in the last : yellowish 

 green and purple-spotted, large (10-15 in. long) and 

 short-stalked, the limb acuminate. Persia. Hardy. 



146. Arum Italicum (X K). 



4. Palaestinum, Boiss. (A. sdnctum, Hort.). BLACK 

 CALLA. SOLOMON'S LILY. Lvs. cordate-hastate, 6 in. 

 broad across the base and about equal in length, the 

 middle lobe broad-ovate and nearly blunt : spathe about 

 the length of the leaf, with a short green tube, and an 

 elongated lance-oblong-tapering limb, which is greenish 

 on the outside and continuous black-purple within, the 

 tip sometimes recurving : spadix shorter than the 

 spathe, the upper part dark colored. Palestine. B.M. 

 5509. Gn. 45, p. 311. Perhaps the most popular Arum at 

 present, being grown in pots as an oddity. 



5. orientals, Bieb. A foot high : Ivs. brownish, 

 broadly hastate-sagitate, the front lobe oblong-acute : 

 spathe tube oblong-ovoid and white within, the limb 

 ovate to oblong and intense black-purple (rarely pale), 

 resembling A. maculatiim.A hardy species from Asia 

 Minor, running into many forms. Some of the plants 

 referred here are A. nigrum, variolatum, Nordmanni, 

 grafum, Schott. ; A. elongatum and A. albispathum, 

 Steven (not A. albispathum, Hort., which is A. Ital- 

 icum). 



BB. Ttiber ovoid or oblong, propagating horizontally, 

 the Ivs. and peduncles arising from the apex : 

 Ivs. appearing before or with the spathe. 



6. maculatum, Linn. (A. vulgare, Lam.). LORDS-AND- 

 LADIES. CUCKOO PINT. WAKE ROBIN (in England). 

 About a foot high : Ivs. usually black-spotted, hastate 

 or sagittate, the front lobe triangular ovate, about as 

 high as the spathe : the spathe swollen at its base, the 

 margins of the lance-ovate limb becoming inrolled, 

 spotted with purple : spadix shorter than the spathe, 

 purple. Eu. A hardy species, of many forms. A form 

 with spotless Ivs. and a whitish tube with a medial pur- 

 ple zone, is A. immaculdtum and Zelebdri, Schott. 



ARUNDO 



Var. angustatum, Engler, has a narrow light-purple 

 spathe (A. intermedium, Schur. A. Mdlyi, Schott.). 

 Var. alpinum. Engler (A. alplnnm, Schott. & Kotschy) 

 has peduncles longer, and an ovate-lanceolate spathe. 



7. Italicum, Miller (A. cylindraceum, Gasp.). Fig. 

 146. Larger than the last : Ivs. hastate, nearly truncate 

 below, light-veined : spathe scarcely swollen below, the 

 limb erect and not expanding and including the short 

 spadix (tip sometimes deflexed after flowering). Yel- 

 lowish or white and faintly striate. Eu. B.M. 2432. A 

 hardy species ; also grown in pots. In the open, the 

 Ivs. appear in the fall. A very variable species. Var. 

 Canariense, Engler (A. Canari^nse, Webb. & Berth.), 

 has narrow leaf-lobes and spathe. Var. concinnatum, 

 Engler (A. concinnatum and marmoratum, Schott.), 

 has broad gray-spotted Ivs. Var. Byzantinum, Engler, 

 (A. Byzantlnum, Schott.), has spathe tube oblong, 

 white inside and purple at the mouth, and an acuminate 

 purple or green limb. Var. albispathum, Hort., has a 

 white spathe. L. jj B 



ARtfNCUS( old name). Bosacece. Tall perennial herbs, 

 often referred to the genus Spiraea, with numerous small 

 dioecious white fls. in panicled spikes : stamens many ; 

 pistils commonly 3. Two species, American and Japanese. 



Sylvester, Kost. (Spircea Aruncus, Linn.). Tall (5-7 

 ft.), erect branchy herb : Ivs. large, 1-2-pinnate, of 3-7 

 ovate Ifts. : follicles deflexed in f r. Rich woods, N. Amer. , 

 N. Eu. and Asia. A desirable hardy border plant of 

 easy culture. 



astilboides, Maxim. (Spircea Aruncus, var. astilboldes, 

 Maxim. S. astilboldes, Hort. Astilbe astilboldes, Le- 

 moine, Gn. 48, p. 355-6) . Dwarfer and more graceful than 

 the above (2 f t. ) : pedicels erect in f r. Japan. Neater than 

 the American species. See Astilbe for illustration. 



L. H. B. 



ARUNDINARIA. See Bamboo. 



AEtJNDO (Latin, reed). Graminece. Tall leafy per- 

 ennial grasses resembling bamboos, 5-15 ft. high, or 

 even 30 ft. in favorable locations. Lvs. broad and grace- 

 fully arching : sts. leafy to near the top, terminating in 

 an immense plume 1-2 ft. long : spikelets long and 

 pointed. 



Ddnax, Linn. GIANT REED. Figs. 147, 148. Towering 

 straight stems 8-30 ft. high, which grow very rapidly, 

 clothed with broad, pointed leaves at regular intervals. 

 Grown for lawn decoration and to conceal unsightly ob- 

 jects. In some countries used for laths, woven work 

 and thatching, and the 

 roots as a diuretic. The 

 tall, showy plumes are 

 reddish at first and last 

 a long time. Mediter- 

 ranean, Orient. Gn. 1, 

 p. 391; 3, p. 493 ; 8, p. 

 199 ; 17, p. 407. P.G. 

 3:2. Var. variegata, 

 Hort. (var. versicolor, 

 Hort.). Much dwarf er 

 and less hardy than 

 the type, usually 4-7 or 

 even 12 ft, high, with 

 elegant longitudinal 

 stripes of creamy white 

 and green. Gt. 39, p. 

 209. F. 8.14:1425. Var. 

 macrophy lla , Hort.. 

 has large, very glau- 

 cous Ivs. 



conspicua, Forst. f. 

 A rare and handsome 

 form, bearing silky 

 white fls., which are 

 beautiful for months. 

 Less hardy than A. 

 Donax, and with nar- 

 rower Ivs. Lvs. 2-4 ft. 



long, very slender, involute, coriaceous, deeply chan- 

 neled ; upper surface, margins, and long, slender point 

 roughish. N. Zeal. B.M. 6232. Gn. 18, p. 479 ; 49, p 

 229 - P. B. KENNEDY 



147. Arundo Donax. 



