228 BROOM-RAPE FAMILY. 



6. MARTYNIA, UXK'OHX-PLAXT. (Named hy Linnams for Prnf. 



Murti/n.) ( 'lammy-pnl.cscent and licavy-.sct ntcd rank herbs, with long- 

 petioled rounded and obliquely heart-shaped wavy-margined leaves, and large 



flowers, in summer, (i) 



M. probOSCidea, COMMON r. Wild S. W., and cult, in gardens; 

 coarse, with ncarl\ entire leaves, large corolla whitish with some purple and 

 yellow spots, and long-beaked fruit. 



M. fragrans, SWKI;T-SCI:.\TI:I> U. Cult, from Mexico; less coarse and 

 clammy, with somewhat 3-lobud or sinuate-toothed leaves, and showy violct- 

 purple vanilla-scented (lowers. 



74. GESNERIACE.SJ, GESNERIA FAMILY. 



Tropical plants, with 2-lipped or somewhat irregular corolla<=, 

 didynamous stamens, a one-celled ovary with two parietal many- 

 seeded placenta?, therefore botanic-ally like the next family ; but 

 with green herbage, and not parasitic, and the common cultivated 

 species have the tube of the calyx coherent at least with the ba<e 

 of the ovary. Many, and some very showy, plants of this order 

 are in choice conservatories ; the commonest are the following. 



Gloxinia speci6sa. An almost stomlcss herb, with ovate and crcnately 

 toothed leaves and 1 -flowered scape-like peduncles ; the deHexed corolla 2' long, 

 ventricose, between hell-shaped and funnel-form, gibbous, with a short and 

 spreading somewhat unequal 5-lobed border, violet with a deeper-colored throat, 

 in one variety white. 2/ 



Gesn6ria zebrina. Stem tall, leafy ; leaves petioled, cordate, velvety, 

 purple-mottled ; a terminal raceme of showy flowers nodding on erect pedicels ; 

 corolla tubular-ventricose, with a small 5-lobed and somewhat 2-lipped border, 

 glandular, scarlet, with the under side and inside yellow and dark-spotted. 

 There are several other species. ^ 



Achim^nes longifldra. Stem leafy ; flowers in the axils of oblong or 

 ovate hairy leaves, which they exceed ; tube of the obliquely salver-shaped 

 corolla OVIT an inch long, narrow, the very flat 5-lobed limb '2' or more broad, 

 violet-colored above, also a white variety. Propagates by scaly bulblcts from 

 the root. ^ 



75. OROBANCHACE.E, BROOM-RAPE FAMILY. 



Low, root-parasitic perennials, destitute of green herbage, and 

 with yellowish or brownish scales in place of leaves, the monopet- 

 alous corolla more or less 2-lipped or irregular, 4 didvnamous 

 .-taniens, and one-celled ovary and pod with the 2 or 4 parietal pla- 

 i-cnta' covered with innumerable small seeds. Ours occur in woods, 

 ami mostly parasitic on the roots of trees. 



1* EPIPHEGUS. Stems slender and busliy-branching, with small find scattered 



M-ali's and two sorts of (lowers >e:itteivii in lnn-e spikes or racemes, with 

 minute (tracts. Upper flowers conspicuous, but seldom ripening fruit, with 

 tubular 4-toothed corolla, and long filaments and style; lower flowers small 

 and short, seldom opening, lint fertili/.ed in the hud. 



2. CONOPHOLIS. Stems thick, covered with linn overlapping scales, each of 



the upper dues with a (lower in its axil, forming a spike. Calyx 4- 5-toothed, 

 and split down on the lower sj,|e. Corolla ^liort, -troni;ly U-lipped; upper 

 lip arched and notched; lower one spreading and 3-clett. Stamens pro- 

 truding. 



3. APHYLLON. Stems are chiefly slender 1-tlowcred scapes from a scaly 



mostly subterranean liase. Calyx r.-cleft. Corolla with a long curved 

 tube, and a snivading slightly 2-lipped or inviailar 5-lobed border; the lobes 

 all nearly alike. Stamens included in the tube. 



