FED ALINED 347 



nerved, while the third pair are similar but very much larger 

 and five- to seven-nerved. 



Martynia proboscidea, Gloxin. 



Pistil surrounded at the base by a disc ; ovary one-celled, many- 

 ovuled ; ovules pendulous, anatropous ; radicle superior. 



Fruit a subdrupaceous or rather sub-baccate capsule, one-celled, 

 with two broad or lamellate parietal placentas, many-seeded, dehis- 

 cing loculicidally. It terminates in two long curved horns, which 

 attach themselves to animals and so disseminate the plant. I have 

 already figured it in ' Flowers, Fruits and Leaves ' (fig. 51). 



Seed obovate, dorso-ventrally compressed, rugose and raised into 

 numerous short, blunt projections round the margins, but especially 

 of the upper half ; testa thick, cortical, rough, black ; tegmen thin, 

 almost membranous, white ; hilum close to the apex on the ventral 

 aspect, forming an open cavity when dry ; micropyle basal and con- 

 tiguous to the hilum ; chalaza more or less prominent and thickened 

 externally, and also forming a more or less evident thickening on 

 the inner coat, most evident when moist and discoloured. 



Endosperm absent. 



Embryo straight, large, obovoid, dorso-ventrally compressed, 

 conforming closely to the tegmen, colourless ; cotyledons obovate, 

 plano-convex, emarginate at the chalaza, three- or indistinctly 

 five-nerved from the base upwards, thick and fleshy, auricled at 

 the base to fill the seed while accommodating the radicle ; radicle 

 very stout, blunt, turbinate, short and only slightly protruded 

 beyond the cotyledons. 



Seedling. 



Primary root tapering downwards, with numerous lateral rootlets 

 immediately at the base of the hypocotyl, brownish-orange, annual. 



Hypocotyl erect, terete, densely glandular- hairy or pubescent, 

 pale green, stout, fleshy, 6 cm. long. 



Cotyledons large, oblong, obtuse, cordate or auricled at the base, 

 coarsely hairy on both surfaces, petiolate, dull green ; lamina 2 cm. 

 long, 1'3 cm. wide ; petiole channelled above, about 2 cm. long. 



Stem herbaceous, annual, stout or fleshy, erect, terete, pale green, 

 densely glandular-hairy ; 1st internode 2'35 cm. long ; 2nd 1-8 cm. ; 

 3rd 1 cm. ; 4th 9 mm. 



Leaves simple, cauline, opposite, decussate, exstipulate, petiolate, 

 five- to seven-nerved with ascending, slightly incurved nerves, reticu- 

 late, densely glandular-hairy all over, viscid, odoriferous, dull green ; 



