362 BURMANNIACEAE 
2. T. geniculata L. Plant 2-3.5 m. tall: leaf-blades pip id hn Nec 
lanceolate, 2.5-8 dm. long, acuminate at the apex, rounded o the 
base: panicle Rond and loosely branched, the internodes s (T mm.), 
slender: spi nodding or spreading: bracts pesce t the apex, s larger 
ones 2-2.5 c nl ong: ge purple: ce 8-9 mm. long: larger staminodium 
about Ps em. Tong: s icle oval, 6-7 mm. in diameter. [T. divaricata "led 
—(LILIzs.)—Pools, po TA net swamps, and r river-shores , Fla. 
T “largest loved ‘native herb. In colonies usually conspicuous, prod no mee 
ve. The scapes, irregularly branched, stand at various angles 2j 
Rin s leaf- blades are usually weather-worn 
ORDER 12. ORCHIDALES — ORCHIDAL ORDER 
Terrestrial, aquatic or epiphytie herbs. Leaves usually fleshy, some- 
times seale-like. Flowers mostly perfect and complete, very irregular, ex- 
cept in BURMANNIACEAE. Calyx of 3 sepals. Corolla of 3 petals. Gynoe- 
cium compound. Ovary inferior. Seeds numerous. Endosperm wanting. 
Flowers regular : stamens and pistil distinct. Fam. 1. BURMANNIACEAE. 
Flowers irregular : stamens and pistil united into a column. Fam. 2. ORCHIDACEAE. 
Famity 1. BURMANNIACEAE — BURMANNIA FAMILY 
Slight or relatively small herbs. Leaves mainly basal, those on the 
stem scale-like. Flowers regular. Sepals and petals partially united. 
Androecium of 3 to 6 stamens: filaments adnate to the perianth-tube. 
Gynoecium 3-carpellary. Fruit capsular, sometimes angled or winged.— 
en genera and about 60 species, mostly in the tropics 
Hypanthium 3-angled or 3-winged: ovary 3-celled: capsule 3- vere from the apex 
or irregularly rupturing. . BURMANNIA. 
E terete: ovary 1-celled: capsule 3-valved from the 
bas 2. APTERIA. 
1. BURMANNIA L. Annual herbs. Flowers spreading or erect, short- 
ae white or blue. Filaments unappendaged; connective prolonged be- 
ond anther-saes.— Twenty species, in the tropics of the Old World and the 
New.—Spr fall, or all year S. 
Flowers 1-few, usually 2, in a terminal raceme: hypanthium broadly 
3-winged. 1. B. biflora. 
Flowers several in a terminal cluster: hypanthium 3-angled. - 2. B. capitata. 
biflorà L. Stem 5-15 em. tall: 
leaf- seales ai mm. long: flowers soli- 
tary the top of the stem or 2-few 
io moe corolla- Ds narrow: capsule 
4-5 m ong.—Low pinelands, often. in 
acid peat, mem Plain, Fla. to La. 
and Va. 
2. B. capitata (Walt.) Mart. mus 5- 
20 cm. tall: ess ales 1-5 
flowers several many in - p 
cluster: corolla- lobes obsolet capsule 
2-3 mm. long.—Low pin fede Coastal 
Plain, Fla, to La. and N. C—(W. I., 
S.A. ) 
