ENDOGENS. 43 



E. Spatha 2-valved. Stigmas filiform. Filaments free, unequal 

 1. Gladiolus, Swokd-Flaq. Corm fleshy ; stem erect, tall, bearing a, 

 spike of showy, irregular fls. Many, fine species. S. Af. , Medit. States. 

 G. psitiacinus, tall ; fls. large, yellow and scarlet ; var. Gandavensis, 

 in gardens. Cape of Good Hope ; G. cardindlis, fls. scarlet. Cape ; G. 

 bldndus, fls. rose and white, Cape ; G. byzantinus, G. communis, fls. 

 white or rose, S. Eur. 2. Tritonia. 3. Sparixis, Watsonia, fine 

 Cape species, once included in Ixia. 



T^cca Alliance.— Fls. g , reg. ; perianth 6-lohed. Stamens 5 or 6, 

 on perianth tube, anthers separate. Ova. 1-3-celled ; fr. a capsule or 

 berry. Sds. minute, perisperm 0; or large, with perisperm. Herbs, 

 ann. or perenn. 35. Tacc^ceae. 36. Burmanniaceae. 



Ord. 35. Taccacese. -^Perennial, steraless. Khiz. tuberous, edible ; 

 Ivs. broad ;. entire, or palmisect, pinnatifld. Scape crowned with an 

 involucrate umbel of long, pedicelled, drooping fls., mixed with long, 

 abortive pedicels. Fr. a berry. Emb. minute, included in perisperm. 

 2 gen. : 1. T4cca, fls. green or brown. 7 species. Trop. Am., Af., In- 

 dian and Paciflc islands. Scapes furnish a fine straw, wrought into 

 hats, crowns, etc., by the Tahitians. 2. Aticcia, Ivs. entire. Few 

 species. Ind., Malaysia. A. cristdia (miscalled T4cca integrifUia). 

 Scape, involucre, and fls. purple ; perianth tube 6-angled ; limb 

 reflexed. 



Ord. 36. Burtnanniacese. — Ann. or perenn. ; stem weak ; often 

 parasitic, discolored, rarely green and leaf}'. Scape with a cyme of 

 2— Qo-bActeate fls., various in color. Fr. capsular, Sds. minute, oo, 

 with loose testa ; emb. an undivided, cellular mass, seemingly formed 

 of the tigellus. Perisperm 0. 1. Stenomeris. Green, sarmentose, Ivs. 

 resembling Smilax. Fls. 6-merous. 2. Thismia. Discolored, small, 

 leafless. Fls. 6-merous, 5 of the lobes tailed ; stamens often monadel- 

 phous. Fls. few, racemose, variegated yellow-red. Tenasserim coast. 



3. Burmannia, similar, but sta. 3, and 3 outer perianth divisions 

 winged. 7 species. Asia, Af., Am. B. biflbra, fls. light blue. 

 Swamps, Va. to Fla. and La. B. capitdta, fls. white. S. Car., Ga. 



4. Apt^ria setdeea, similar, but purple fls. campanulate, wingless, ra- 

 cemed. Moist shades, Fla. and La. 



Orchis Alliance. — Pis. § , very irreg. ; perianth of 6, rarely 3, seg- 

 ments. Stamens 1, 2,-or 3, gynandrous. Fr. capsular. Sds. numer- 

 ous, very minute ; testa lax; emb. undivided, fleshy. Perisperm 0. 

 Perennial herbaceous plants. 37. Apostasiacese. 38. Orchidacese. 



Ord. 37. Apostasiaceae. — Fls. orchidaceous, but with ovary always 

 3-celled, and stamens with short filaments gynandrous only at base. 

 Sds. minute, scobiform. 2 genera : 1. Apostasia, Ivs. grassy ; fls. 

 small, yellow, fragrant, nodding, in terminal panicles. Forests of 

 Malacca, Burmah, Assam. 2. Neowiedia, resembling a minute 

 dwarf palm ; fls. in spikes. Borneo. 



Ord. 38. Orchidacese. Orchids. — Fls. described, Lessons XXL, 

 XXIII. Ova. 1-celled, except in Selenipedium. Terrestrial, epiphy- 

 tal, or parasitic herbaceous plants, sometimes in marshes ; rhiz. creep- 

 ing, or with fascicled fibrous rts., often tubercular; Ivs. often connate 

 at base, forming a pseudo-bulb. Lvs. various in form. Very many 

 genera, in all climates, but flourishing best in moist, hot tropics. 8 

 Tribes, distinctions in pollen, anthers, and habits. 



Tribe 1. Cypripfediese. — 1. Selenipedium. Lip saccate. Ova. 3- 



