134 PINGUICULACEAE. 



Calyx-lobes linear to lanceolate : anther-sacs pointless : capsule 



6-20-seeded. 2. RCELLIA. 



Corolla strongly 2-lipped ; lobes erect : stamens 2. 3. DIAPEDIUM. 



1. DYSCHORISTE Nees. Herbs or woody plants: leaf -blades entire. 

 Flowers solitary or clustered in the axils. Calyx-lobes 5, very slender. Corolla 

 blue, purple, or rarely white, slightly 2-lipped. Capsules 2-4-seeded. [Calo- 

 phanes D. Don.] 



1. D. angusta (A. Gray) Small. Stems 1-2 dm. tall: leaves numerous; blades 

 1-2.5 cm. long, spatulate below to linear-oblong or linear above: calyx-lobes 

 linear-subulate, 9-11 mm. long: corolla-limb about 10 mm. wide: capsules 7-8 

 mm. long. Pinelands and open sandy hammocks, L. keys. [E. K.] 



2. BUTVTiTiIA [Plum.] L. Caulescent herbs. Leaf-blades entire or 

 toothed. Flowers axillary or sometimes in terminal clusters. Calyx 5-lobed, 

 the lobes narrow. Corolla nearly regular. Capsules 6-20 seeded. 



1. R. hybrida Pursh. Stems 2-6 dm. tall, more or less diffusely spreading, 

 closely grayish-pubescent : leaf -blades ovate to oblong, 2.5-5 cm. long or larger : 

 calyx minutely hirsute or canescent-hirsute ; lobes linear-filiform, 10-15 mm. 

 long or more: corolla light-blue, or whitish, 2.5-5 cm. long: capsules less than 

 15 mm. long. Pinelands and open hammocks, L. keys. 



3. DIAPEDIUM Konig. Annual or usually perennial herbs. Leaf -blades 

 entire. Flowers in conspicuously bracted spikes. Calyx 5-lobed, the lobes 

 narrow, nearly equal. Corolla 2-lipped, the upper lip erect. Filaments elon- 

 gate. Capsule with an ovoid or suborbicular body. 



1. D. assurgens (L.) Kuntze. Plants 3-11 dm. tall, often diffuse: leaf -blades 

 ovate to elliptic or oblong-lanceolate, 2-10 cm. long: calyx 3-4 mm. long; lobes 

 lanceolate: corolla crimson or red, 2-2.5 cm. long: capsules 7-8 mm. long. 

 Hammocks, U. keys, L. keys, L. S. keys. (Bah., Cuba, Ant.) 



FAMILY 12. PINGUICULACEAE. 1 BLADDERWORT FAMILY. 



Herbs growing in water or wet places. Leaves submersed and dis- 

 sected, sometimes resembling rootlets and often bladder-bearing; or aerial, 

 basal, entire ; or rarely, wanting. Scapes naked or minutely scaly. Flowers 

 irregular, perfect. Calyx of 2-5 herbaceous sepals. Corolla 2-lipped : tube 

 spurred or saccate. Androecium of 2 stamens, adnate to the corolla-tube 

 on its upper side. Filaments flattened, twisted. Anthers confluently 

 1-celled. Gynoecium a single 1-celled pistil, with a free-central usually 

 globose placenta. Style thick. Stigma often unequally 2-lipped. Fruit 

 a capsule, 2-valved or irregularly dehiscent. 



1. PINGUICUIiA [Tourn.] L. Terrestrial scapose herbs. Leaves in a 

 basal rosette: blades flat. Scapes usually several, 1-flowered, without scales or 

 bracts. Sepals 5, more or less united. Corolla spurred at the base, the palate 

 subulate, included in the tube. 



1. P. pumila Michx. Leaves clammy-pubescent: scapes very slender, 5-20 cm. 

 tall: corolla 1-2 cm. broad; spur subulate, about 3 mm. long, longer than the 

 sac-like base of the corolla. Low pinelands, L. keys. [E. K.] (Bah., Cuba.) 



BtJTTERWORT. 



Contributed by Dr. John Hendley Barnhart. 



