1656 



IOCHROMA 



IPOMCEA 



flavum, Andre. Bushy shrub, 6 or 7 ft., the young 

 growth glabrous: Ivs. alternate and stalked, oval- 

 lanceolate, short-pubescent beneath, attenuate at both 

 ends: fls. pale yellow, in drooping axillary clusters, 

 tubular, 1^2 in. long, the border or limb short-toothed. 

 Colombia. R.H. 1898:360. 



coccineum, Scheidw. Shrubby, the branches pubes- 

 cent: Ivs. stalked, oblong, undulate and somewhat 

 repand, long-acuminate, hairy on nerves and veins: 

 fls. in an umbel-like fascicle, drooping, scarlet; corolla 

 long-tubular, about 2 in. long, with a narrow border or 

 limb; calyx about %in. long, broadly short-toothed. 

 Cent. Amer. F.S. 12:1261. L. H. B. 



IONE (one of the nereids). Orchidaceae. About a 

 half-dozen pseudobulbous orchids of E. India, by some 

 united with Bulbophyllum : lateral sepals usually 

 connate and under the lip, the latter rather large, 

 straight and rigid; pollinia 4, attached in pairs to 2 

 glands. /. paledcea, Lindl. (Bulbophyllum palcaceum, 

 Benth.), has drooping fls. about 1 in. long, many in 

 erect spikes; sepals greenish with pink nerves; petals 

 spreading, broadly oblong and 1-3-nerved; lip ovate- 

 lanceolate: scape exceeding the If., about 9 in. India. 

 B.M. 6344. I. siamensis, Rolfe. Pseudobulbs 1-lvd., 

 4-angled-ovoid : Ivs. narrow-oblong, about 3 in. long: 

 scapes nearly erect, slender, about 6 in. long, bearing a 

 raceme about 2% in. long that has 9-10 fls., which are 

 about ^in. long, pale green with dull purple on lateral 

 sepals and lip and with purple dots near margin of outer 

 segms. Siam. Recent. 7. grandiflora, Rolfe. Pseudo- 

 bulbs 1-lvd., ovoid: Ivs. oblong, 2 in. or less long: scapes 

 erect, 1-fld.; fl. dull lurid purple; sepals and petals 

 oblong, acute; lip cordate-ovate, hirsute above, keeled 

 beneath. Burma. Recent. ,_ jj t j^ 



lONfDIUM CONCOLOR: Hybanthus. 



IONOPSIDIUM (Greek, violet-like). Crudferx. One 

 pretty, tufted little plant, growing 2 or 3 in. high and 

 bearing numerous small 4-petaled, lilac fls. from spring 

 to fall. It is a half-hardy perennial from Portugal and 

 N. Afr., but is treated as an annual. It is desirable for 

 edgings in moist shady places, and for rockeries; also 

 as a pot subject in window-gardening. In rich garden 

 soil the plants make numerous runners. The fls. are 

 about 3^in. across, 1 on each stalk. They open white 

 and turn lilac. The plant has been advertised as the 

 diamond flower. This plant is referred by some to 

 Cochlearia, a genus whose limits are very uncertain. 



acaule, Reichb. (Cochlearia acaulis, Desf.). Lvs. 

 ovate-rotund, heart-shaped at the base; petioles pro- 

 portionately very long: pods subrotund, notched. B.R. 

 32:51. Gn. 71, p. 90; 72, p. 398. Summer to winter. 



WILHELM MILLER. 



IONOPSIS (Greek, violet-like). Orchidacese. A small 

 group of epiphytic orchids, numbering about ten spe- 

 cies, many of which can probably be reduced to 

 varieties of a few species. Most of the species are 

 insignificant, only one or two being cultivated. 



Tropical herbs without pseudobulbs, having 

 very short sts., with few, narrow, sheathing, 

 coriaceous Ivs. : sepals subequal, erect, spreading, 

 the dorsal one free, the lateral ones united into 

 a short spur behind; petals like the 

 dorsal sepals; labellum united to the 

 base of the column, middle lobe large, 

 expanded, 2-3 times as long as the 

 sepals, 2-lobed; column short; pollinia 

 2; fls. small, in simple racemes or 

 much-branched panicles. The fine 

 specimen of 7. paniculata figured in the 

 Botanical Magazine has a panicle 10 

 in. long, 8J^in. wide, with 5 branches, 

 and about 80 fls., each %in. across and 

 chiefly white, with violet markings i960. lonopsis utricularioides. ( x 



near the center and a dash of yellow. In its native 

 country it is said to remain in attractive condition 

 from Sept. to May. The fls. are produced so freely and 

 over so long a period that it is sometimes necessary to 

 destroy the fl.- spikes, which are out of all proportion 

 to the number of Ivs. The plants succeed in the warm- 

 house under the same treatment as rodriguezias or the 

 more delicate oncidiums. 



The best means of culture for the successful growing 

 of these beautiful though delicate orchids is in shallow 

 pans with plenty of small broken coal cinders for 

 drainage, covered with the fine particles of fern root 

 and chopped sphagnum gathered from the upland 

 meadows. Plenty of heat and moisture during the 

 growing season are essential. Rest them in winter at 

 a temperature of 50 to 55 F. (Wm. Mathews.) 



paniculata, Lindl. Lvs. thick and channelled, linear- 

 lanceolate, keeled, 2-3 in a cluster and about 6 in. long: 

 panicle much branched and spreading, loaded with 

 innumerable fls. of a delicate texture; sepals and petals 

 very short, sharp-pointed, the petals wider; labellum 

 very large, pubescent at base, with a 2-lobed rounded 

 limb, which in some is almost entirely white, while in 

 others it has a spot of purple or yellow on the disk. 

 Winter. Brazil. B.M. 5541. F.S. 22:2333. A.F. 6:631. 

 C.O. 1. Very variable. 



utricularioides, Lindl. Fig. 1960. Lvs. and general 

 habit as in the last: sepals and petals bluntish; spur 

 short; labellum almost twice as long as the petals; 

 lobes subquadrate - rounded, 

 white, streaked with red veins. 

 Jamaica. 



/. testiculata, Lindl. Lvs. tufted, 

 terete, acuminate: fls. whitish, small, 

 numerous. Jamaica. 



HEINRICH HASSELBRING. 



IPECAC. The root of Ceph- 

 aelis Ipecacuanha (Vol. I, p. 

 714), a Brazilian plant not cul- 

 tivated in North America. For 

 wild or American ipecac, see 

 Gillenia stipulacea. 



IPOMCEA (according to Lin- 

 nseus from ips, bindweed, and 

 homoios, like, because of its 

 resemblance to Convolvulus; 

 but ips is a worm). Including 

 Batatas, Opercullna, and Phdr- 

 bitis. Convolvuldcese. MORX- 

 ING-GLORY. MOONFLOWER. 

 Annual or perennial herbs, 

 mostly twining, rarely trees 

 (G.F. 7:364) or shrubs, widely 

 distributed in tropical and 

 temperate regions. They are 

 remarkable for easy culture, 

 quick growth and beautiful 

 flowers; hence the genus in- 

 cludes several of our most 

 popular plants for covering ver- 

 andas and screening unsightly 

 objects. 



The generic characters of 

 Ipomcea are not clearly defined. 

 It is distinguished from Con- 

 volvulus by having but 1 capi- 

 tate or 2-3 globose stigmas, 

 while Convolvulus has 2 linear 

 or ovate stigmas. From Cal- 

 onyction and Quamoclit it is 

 distinguished by its funnelform 

 corolla-tube and the stamens 

 usually included. St. mostly 

 slender, twining or climbing, 



