ISOLOMA 



Cecilije, Nicliols. {Ti/dcea Cecilice, Andre'). Much like 

 /. iniinhih, I. lit Ivs. marked with violet and silvery 

 zoiirs .ir hli.t.li.s: lis. 2 or 3 from each axil, the fls. pale 

 ro^t' uiitsi.lr and striped in the throat, and the limb pur- 

 ple-spotted. Colombia. I.H. 23:260. 



ocell^tum, Benth. & Hook. (Achimenes oceU&ta, 

 Hook.). Short-hairy on the stem: Ivs. ovate-acuminate, 

 serrate, green: fls. small, on peduncles shorter than the 

 Ivs., the tube and short, rounded lobes red, the seiu:- 

 ments marked with whitish and black spots. Panama. 

 B.M. 43.59. 



Jaliscanum. Wats. Fig. 1185. Herbaceous or some 

 what woody at the base, 1 ft., pubescent: Ivs. opposite, 

 oblong-lanceolate to ovate-lanceolate to ovate, shorl- 

 acuminate, short-stalked, serrate: fls. 2-4 on an axillary 

 peduncle, the corolla an inch long, tubular and short- 

 lobed, pubescent, scarlet. Mex.— A worthy plant, not 

 yet in the trade, but has been cult. l H. B. 



ISONANDEA (Greek, equal anthers). Sapotacea. 

 Jsonandra Gtttta is a large-leaved E. Indian tree, which 

 furnishes the best commercial gutta-percha. The name 

 has appeared in one southern catalogue, but the plants 

 were found to be not true to name. This plant should 

 be called Dicliojjsis GuiUi. In Dichopsis the floral part.s 

 are in 6's, stamens 12, and the seeds have no albumen, 

 while in Isonandra the floral parts are in 4's, the sta- 

 mens 8, and the seeds albuminous. See Sahher Plants. 



Giitta, Hook. Properly Dichdpsis Outta, Benth. & 

 Hook. GuTTA-PEKCHA TREE. Lvs. leathery, elliptic, 

 ahiuptly pointed Malaya. R.H. 18'.I8, p. 441. 



ISOTOMA (Greek, equalli/ cut ; referring to the co- 

 rolla, and true only by contrast with Lobelia). Oom- 

 pannldcete. This includes a plant treated as a half-hardy 

 annual, which grows about a foot high, has curiously 

 cut foliage, and odd fls. with asleuder bent tube 1 in. or 

 more long, and 5 slender spreading lobes, each ^in. 

 long. Among allied generaof garden value, Centropogon 

 and Siphocampylus have the stamens fastened at the 

 base of the tube, while in Isotoma they are at the top or 

 above the middle. (Centropogon has an indehi.scent 

 berry: Siphocampylus a capsule 2-valved at the top like 

 Isotoma. I Downingia has a tube of stamens free from 

 the corolla. 



axill&Tis, Lindl. Perennial, flowering the first year so 

 as to appear annual, but forming at length a hard root- 

 stock, erect, with few spreading branches: lvs. lineal", 

 irregularly pinnatifid, 2-3 in. long, lobes linear : pedi- 

 cels axillary, 2-6 in. long: fls. large, bluish purple, pale 

 outside. Australia. B.M. 2102 {a,s Iiobelia senecioides) 

 and 5073 (as Isotoma senecioides, var. subpinnatifida). 

 — Not in cult. 



petraea, F. Muell. Identical with the above, except that 

 the lvs. are ovate-oblong or elliptical. Australia. The 

 plant in the trade is said to have cream-colored fls., and 

 is sold as a"Lemon Verbena," a name which properly 

 belongs to Lantana. 



ITALIAN MAY. Spinm hypericlfolla. 



IT£A (Greek name of the willow; because it has wil- 

 low-like lvs., and grows near the water). Saxifragtl- 

 cece. A genus of trees and shrubs, numbering about 5 

 species, inhabiting eastern N. Amer. and eastern Asia, 

 whose one representative in cultivation is /. Virgitiica, 

 a low, upright, somewhat coarse shrub, best known by 

 its long, upright racemes of small white fls. appearing 

 about July 1, in Massachusetts, and its brilliant autumn 

 coloring. In nature it inhabits low, wet places. In cul- 

 tivation it seems to adapt itself to almost any soil. It is 

 not perfectly hardy, but grows rapidly and seems endur- 

 ing of both sun and shade. In ornamental use it is 

 planted in masses or mixed with other shrubs of similar 

 character in the shrubby border or at the edge of woods. 

 Its somewhat coarse character does not favor its ap- 

 proach to more refined objects. In autumn it becomes 

 a brilliant red. It is prop.' from seed, by cuttings and 

 by division of roots, which spread slowly and form 

 clumps of stems. It may be collected from the wild. 



IVA 



837 



Virginica, Linn. Vikginian Willow. Fig. 1186. A 

 shrub, 1 '.>-6 ft. high, usually not more than 2-3 ft. high 

 of upright, somewhat slender habit: lvs. deciduous 

 ternate, oblong, pointed, minutely serrate, smooth green 

 above, pale and slightly pubescent below, petioled, with 

 out stipules, 1-3 in. long: tis. regular, 3 lines long, fra 

 grant, white, in solitary, erect, hairy, simple, dense, ter 

 minal racemes 2-6 in. long, given a greenish white ef- 

 fect by tlie stamens and pistils, not particularly showy 

 appearing late June and July; calyx 5-cleft, persistent 

 nearly free from the base of the ovary; corolla of 5 Ian 



1186. Ilea Virginica (X%) 



ceolate, nearly erect petals and longer than the 5 sta- 

 mens : capsule slender, longitudinally 2-furrowed, 2- 

 celled, many-seeded, splittins through the simple style 

 and partition. Pa. and N. J. to Fla. and La. B.M. 2409. 

 A. Phelps Wtman. 

 IVA (named after Ajnga Tva, from its similar smell). 

 Cotnpdsitip. This includes I.frutescens, Linn., the Marsh 

 Elder or High-water shrub, a native hardy perennial 

 of no garden value, which is, nevertheless, on record as 

 having been cult. It grows 3-12 ft. high in salt marshes 

 and on muddy seashores, has serrate lvs. and fis. as in- 

 conspicuous as those of a ragweed. See B.B. 3:292 and 

 Gray's Manual. 



