AEMERIACEAE. 107 



7 ;' -* 2. OXYPOLIS Raf. Perennial herbs. Leaf -blades pinnate or ternate, or 

 rarely reduced to hollow septate phyllodia. Umbels compound. Sepals acute. 

 Petals white. Fruit longer than broad, dorsally flattened: carpels with the 

 dorsal and contiguous ribs thin, and winged lateral ribs, the latter nerved near 

 the inner part of the wing: oil -tubes solitary in the intervals and 2-6 in the 

 inner face. 



1. O. fUiformis (Walt.) Britton. Plants 5-18 dm. tall: phyllodia 3-60 cm. 

 long: fruits oblong-oval or oval-obovate, 5-6 mm. long, broadly winged. — Low 

 pinelands and lime-sinks, L. keys. — [E. K.] 



Series 2. GAMOPETALAE. 



Petals more or less united, or occasionally distinct, or very rarely 

 wanting. 



Order PRIMULALES. 



Herbs, shrubs, trees, or vines. Leaves alternate or opposite, some- 

 times all basal. Flowers perfect or polygamo-dioeeious, variously dis- 

 posed. Calyx of several partially united sepals. Corolla of 2-several dis- 

 tinct or partially united petals. Androecium of as many stamens as there 

 are sepals, or i^etals, and sometimes accompanied by staminodia. Gynoe- 

 eium of 4-6 united carpels, or rarely more. Fruit capsular or drupaceous, 

 or rarely an achene or utricle. 



Styles distinct : fruit an achene or utricle : ovule 1. Fam. 1. Armekiaceae. 



Styles united : fruit capsular or drupe-like : ovules 

 several. 

 Herbs : ovules or seeds not immersed : fruit capsular. Fatn. 2. Peimdlaceae. 

 Shrubs or trees : ovules or seeds immersed : fruit 

 drupe-like. 

 Staminodia at the sinuses of the corolla-lobes : 



fruit containing few or many seeds. Fam. 3. Theopheastaceab. 



Staminodia wanting : fruit containing a single 



seed. Fam. 4. Ardisiacbab. 



i •■ Family 1. AEMERIACEAE. Plumbago Family. 



Perennial or rarely annual herbs, or shrubby plants, or vines. Leaves 

 alternate, the bases dilated or clasping: blades entire. Flowers perfect, 

 in heads, spikes, or cymes. Calyx of 4 or 5 partially united sepals, the 

 tube ribbed. Corolla of 4 or 5 petals, the claws distinct or united. 

 Andi'oecium of 4 or 5 stamens opposite the petals. Gynoeeium of 4 or 5 

 united carpels. Styles or stigmas distinct. Fruit an achene or a utricle. 



Calyx not glandular : styles distinct or vmited at the base : petal-claws distinct or 

 nearly so. 1. Limonium. 



Calyx glandular : styles united to near the top : petal-claws united 



into a tube. 2. Plumbago. 



1. LIMONIUM [Tourn.] Hill. Shrubby herbs with short leafy caudices 

 and nearly naked flower-stems. Flowers in compound cymes. Calyx funnel- 

 form, the limb scarious and plicate. Corolla fuunelform. — Sea-lavender. 

 Marsh-rosemary. 



Leaf-blades oblong to broadly spatulate. 1. L. irasiliense. 



Leaf-blades linear. 2. L. angustum. 



