EUBTACEAE. 407 



2. Plantago lanceolata L. Sp. PI. 113. 1753. 



Perennial or biennial^ pubescent; rootstock short, erect, with tufts of 

 brown hairs at the bases of the leaves. Leaves narrowly olDlong-lanceolate, 

 shorter than the scapes, entire, acute or acuminate, gradually narrowed into 

 petioles, 3-5-ribbed, 5-30 cm. long; scapes slender, channeled, sometimes 7.5 

 dm. tall; spikes dense, at first ovoid, becoming cylindric, blunt and 1-10 cm. 

 long in fruit, 8-12 mm. thick; flowers perfect, proterogynous; sepals ovate, 

 with a narrow green midrib and broad scarious margins, the two lower ones 

 commonly united; corolla glabrous; filaments w^hite; pyxis oblong, very obtuse, 

 2-seeded, slightly longer than the calyx, circumscissile at about the middle. 



Roadsides, New Providence : — Bermuda ; North America ; Cuba ; Jamaica. Nat- 

 uralized from tlie Old World. Ribwoijt. 



Order 6. RUBIALES. 



Corolla gamopetalous. Anthers separate, the stamens as many as the 

 corolla-lobes and alternate with them (one fewer in Linnaea of the Capri- 

 foliaceae) or twice as many. Ovary compound, inferior, adnate to the 

 calyx-tube. Ovules 1 or more in each cavity of the ovary. Leaves opposite 

 or verticillate. 



Leaves stipulate, usually blackening in drying. Fam. 1. Rubiaceae. 



Leaves usually estipulate, not blackening in drying. Fam. 2. Caprifoliaceae. 



Family 1. RUBIACEAE B. Juss. 



Madder Family. 



Herbs, shrubs, or trees, with simple, opposite or sometimes verticil- 

 late, mostly stipulate leaves, and perfect, often dimorphous or trimor- 

 phous, regular and nearly symmetrical flowers. Calyx-tube adnate to the 

 ovary, its limb various. Corolla funnelform, club-shaped, eampanulate, 

 or rotate, 4-5-lobed. Stamens as many as the lobes of the corolla and 

 alternate with them, inserted on its tube or throat. Ovary 1-10-celled; 

 style simple or lobed; ovules 1-^ in each cavity. Fruit a capsule, berry, 

 or drupe.. Seeds various; seed-coat membranous or crustaceous; endo- 

 sperm fleshy or horny (rarely wanting in a few genera) ; cotyledons ovate, 

 cordate, or foliaceous. A large family of some 340 genera and about 6,000 

 species, of wide distribution. 



^. Cavities of the ovary with several or many ovules ; seeds several or many. 

 Fruit dry, capsular. 



Herbs. 1. Oldenlandia. 



Shrubs or trees. 



Seeds wingless ; leaves linear, grooved. 2. Rachicallis. 



Seeds winged ; leaves broad. 3. Exostema. 



Fruit pulpy, baccate. 

 Fruit 2-celled. 



Flowers in cymes. 4. Cosasia. 



Flowers solitary. 



Corolla-lobes 5, convolute. 5. Randia. 



Corolla-lobes 4, valvate. 6. Cateahaea. 



Fruit 5-celled. 7. Hamelia. 



B. Cavities of the ovary with a single ovule ; seeds solitary. 

 Ovule pendulous. 



Filaments wholly or partly adnate to the corolla-tube. 



Calyx-limb deciduous, though often tardily so. 8. Guettarda. 



Calyx-limb persistent, crowning the fruit. 9. Stenostomum. 



Filaments not adnate to the corolla-tube. 



Inflorescence terminal, or sometimes also axillary. 10. Erithalis. 



Inflorescence axillary. 



