ISOLOMA 



IVA 



sa? 



Ceciliae, Nichols. {Tijdcea CecUia?, Andr<5). Much like 

 /. amahile, but Ivs. marked with violet and silvery 

 zones or blotches: tls. 2 or 3 from each axil, the Ms. pale 

 rose outside and striped in the tliroat, and the lituli pur- 

 ple-spotted. Colombia. LH. 23:200. 



ocellitum, Benth. & Hook. {Aclvimhies ocaUaia, 

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

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

 Ivs., tlie tube and short, rounded lobes red, the sef?- 

 ments marked with whitish and black spots. Panama. 

 B.M. 4359. 



Jallacinum, Wats. Fig. 1185. Herbaceous or some 

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

 oblong-lanceolate to ovate-lanceolate to ovate, short- 

 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. 



ISONANDRA (Greek, equal avthcrs). Sapoi(tc€iv. 

 I.sonandra (Jnfta is a Uirge-leaved E. Indian tree, which 

 furnishes the best commercial gutta-percha. The name 

 has appeared in one southern catalogue, but the plauts 

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

 be e:\x\\&<\Dichoi)sis Gutla. In Dichopsis the Horal parts 

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

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

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



Gutta, Hook. Properly Dichdp^is Gi'itta, Benfh. & 

 Hook. OuTTA-PEKCHA Tree. Ijvs. Icatlierv, elliptic, 

 abruptly pointed Malaya. R.H. 1898, p. 44L 



IS6T0MA (Greek, equally cat; referring to the co- 

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

 pauiilf'ieeiv. This includes a plant treated as a half-hardy 

 annual, which grows ahout a foot high, has curiously 

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

 more long, and 5 slender spreading lol:ies, each y-^^n. 

 long. Among allied geueraof garden value, (Jentropogon 

 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 indehisceut 

 berry; Siphocampylus a capsule 2-Yalved at the top like 

 Isotoma.) Downingia has a tube of stamens free from 

 the corolla. 



axill&,ris, Lindl, Perennial, flowering the first year so 

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

 stock, erect, with few spreading branches: Ivs. linear, 

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

 cels axillary, 2-0 in. long: fls. large, bluish purple, pale 

 outside. Australia. B.M. 2702 (as Lobelia senecioides) 

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

 — Not in cult. 



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

 the Ivs. 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. Spirwa hijperieifotia . 



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

 low-like Ivs., and grows near the water). Saxifraga- 

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

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

 whose one representative in cultivation is /. Virginica, 

 alow, upright, somewhat coarse shrub, best known by 

 its long, upright racemes of small white tis. 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 slowlj-" and form 

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



Virgrinica, Linn. Vir<^inian Willow. Fig. IISO. A 

 shrub, ] Sj-0 ft. high, usually not more than 2-3 ft. high, 

 of upright, somewhat slender habit: Ivs. deciduous, al- 

 ternate, oblong, pointed, minutely serrate, smooth green 

 above, pale and sligiitly pubescent l)elow, petioled, with- 

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

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

 minal racemes 2-0 in. long, given a greenish white ef- 

 fect by the 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 lan- 



1186. Itea Vireinica ( 



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

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

 celled, many-seeded, splittiner through the simple style 

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



A. Phelps Wyman. 

 iVA (named attev Ajiiga Tea, from its similar smell). 

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

 Rider 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 raarshi-s 

 and on muddy seashores, has serrate Ivs. and fls. as in- 

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

 Orav's Manual. 



