700 Order 144,— DIOBCOftEACBjE. 



5. IXIA, L. (Gr. t|of, sticky ; from the glutmoua juice.) Spatho 

 of 2 or 3 ovate, short bracts ; petals and sepals distinct or slightly 

 united, similar, regular, spreading, tube straight, adherent ; stamens 3 ; 

 filaments and style fiHforra, straight, often connate J ovary 3-cclled.'— A 

 large genus, chiefly from S. Africa. Lvs. ensiform. 



1 I. oelestina Bartram. . Lvs. linear-subulato, many times shorter than the 1- 

 llow'ored scape (Linn. Ell.). — Borders of swampa, Ga. and Fla. (Bartram) ; rare. — 

 We have a single flower without stem, Its. or fruit, gathered in E. Fla. by Prof. 

 Loomis, and sent us by Dr. Feay. It is of a bright purplisli blue, spreading 2J'. 

 Segm. about equal, oval, obtuse, united into a tube 4" in length. Stamens and 

 stylo apparently distinct, 6" long. 



2 I. (PARDANTHUS) Chinensis L. Lvs. ensiform, vertical, sheathing shorter 

 than the tall, terete, fleiuous stem ; panicle somewhat dichotomous and corym- 

 bous ; perianth broad-campanulate, segm. distinct down to the lop of the ovary, 

 oblong, twisting after flowering ; capsule ovoid, the valves deciduous, seeds black, 

 roundish, shining, attached to the central column, and resembling a large blaclf- 

 beny. — Plentifully naturalized on the bluffs at Merom, Ind. St 3f high. Fla. 

 orange, spotted. Jn. | § 



6. CRO^CUS, L. (Named from the youth Crocus, who according to 

 Grecian mythology, was changed into this flower.) Perianth funnel- 

 form, the segments united at base into a long and slender tube ; stigma 

 3-cleft, convolute, crested. — Spatho radical, 1 — 2-leaved, thin, transpa- 

 rent. The long tube of the flower nearly or quite sessile upon the 

 bulb. After flowering, the ovary arises from the ground by the growth 

 of the scape, to ripen its seeds in the sun. 



1 C. sativus L. S-iFFRON. Pall Crocits. Lvs. linear, revolute at the mar- 

 gins; stig. 3-parted, asJong as the corolla, reflexed. Leaves radical, with a long!-, 

 tudinal, white furrow above. Plower with a long, white tube, and purple, ellip- 

 tical segments. Stigmas long, emarginate, exsert, of a deep orange-color. Its 

 virtues, both medicinal and coloring, reside chiefly in the large stigmas. SepL — 

 A variety, perhaps the most common, has yellow perianths. :): Asia. 



2 C. v^mus L. SPEisre Crocus. Stig. included within the flower, with 3 

 short, wedge-shaped segments. — Scape an inch or -two high, 3-sided. Flowers 

 vary in color, generally purple, often yellow or white ; tube very long, slender, 

 gradually enlarged upwards, closed at the mouth with a circle of hairs, limb cam- 

 panulate, much shorter than the tube. Anth. yellow, sagittate. Mar., Apr. f Eur. 



7. GLADIOLUS, L. Corn-flag. (Lat. ffladius, a, sviord ; in refer- 

 ence to the form of the leaves.) Spathe 2-leaved; perianth irregular, 

 C-parted, somewhat 2-lipped ; stamens 3, distinct, ascending; stigmas 3, 

 broader above; seeds winged. — A large genus of bulbous plants, none 

 native. Fls. showy. 



G. commuais L. Spike unilateral ; upper petal the (upper lip) coTered by 



the lateral sepals, the lower sepals largest ; tube longer than the ovary. — A fine 



showy flowerer in gardens. St. 2 to 3f high, with the large, rosy purple fls. ar- 



f ranged in a long, somewhat spiral row upon it. The 3 lower segments are marifod 



by a white stripe. Color variable. \ S. Europe. 



Order CXLIV. DIOSCOREACE^. Yam liooTS. 



Plants shrubby, twining, arising from the tuberous rhizomes, with broad net-veined 

 leaves. Flowers dioecious, regular, hexandrous, tube adherent, limb 6-parted. Ovars 

 3-celIed, 3 to 6-ovuled, 3-styled. S Stamens 6, perigynous. JPndi a capsule 3 or 

 (by abortion) ] -celled, or a berry. Seeds compressed, albuminous. 



