298 LEXTIBULARIXE^E. [UTRK rr.Ai:i.\. 



after flowering, upper lip of the corolla as long as the palate, lower pro- 

 jecting a little, recurved. 



Sub-sp. JJKGLEC'TA, Lehm. (sp.) ; more slender, pedicels 4-6 times a< lonir 

 as the calyx straight and ascending after flowering, upper lip of corolla 2-3 

 times as long as the palate, lower forming a broad flat projection. Essex. 



2. U. interme'dia, Hayne ; leaves distichous dichotomously multifid, 

 bladders on the leafless branches, spur conic acute half as long as the lip. 

 Pools and ditches, rather rare ; fl. July-Sept. Stems slender, 4-8 in. Learnt 



close set, J-i in. broad, orbicular in outline ; segments subulate, distantly 

 toothed ; bladders |- in. long, on slender stalks. Scape rather stout, 

 3-4-flowered ; pedicel equalling or much exceeding the calyx. Corolla 

 % in. , pale yellow ; upper lip twice as long as the prominent palate ; lower 

 broad, flat; spur appressed to the under lip. Anthers free. DISTIUB. 

 Europe N. of the Alps, N. Asia, N. America. 



3. U. mi'nor, L. ; leaves dichotomously multifid, bladders on the 

 leaves, spur minute obtuse. 



Pools and ditches, rare in Great Britain, commoner in W. Ireland ; fl. June 

 -Sept. Stems capillary, 3-10 in. Leaves lax, - in. broad, orbicular in 

 outline ; segments subulate, quite entire ; bladders A in. , on slender stalks. 

 Scapes 2-6 in. , 2-6 flowered ; pedicels 2-3 times as long as the calyx. ( '</ /n 

 ^ in., pale yellow ; upper lip as long as the inconspicuous curved palate, 

 lower lip broad. Anthers free. DISTRIB. Europe (excl. Spain, Greece, and 

 Turkey), N. Africa, Siberia, W. Asia to the Himalaya, N. America. 



ORDER LVIII. PRIMULA CE-ffi. 



Perennial, rarely annual herbs. Leaves all radical, or if cauline usually 

 opposite or whorled, exstipulate. Flowers 2-sexual, regular. Calyx infe- 

 rior, superior in Samolits, 5- (rarely 4-9-) cleft. Corolla usually hypogy- 

 nous (0 in Glaux), rotate bell- or funnel-shaped, 5- (rarely 4-9-) deft. 

 Stamens inserted in the corolla-tube opposite its lobes, with sometimes 

 alternating staminodes (hypogynous in Glaux), filaments usually short ; 

 anthers bursting inwards by slits, rarely by terminal pores. Ovary 1- 

 relled ; style simple, stigma undivided ; ovules many, amphitropous 

 rarely anatropous, placenta free central. Capsule 1-celled, dehiscing 

 by simple or 2-fid valves or transversely. Seeds sunk in cavities of the 

 pliii'i-nta, testa thin, hilum usually ventral, albumen fleshy or horny ; 

 embryo terete, parallel to the hilum. DISTRIB. N. temp., arctic, and 

 mountain regions, Chili and Fuegia ; genera 18; species about 200. 

 AKKINITIF.S. With Myrsinece and Pluinbaginccc. PROPERTIES unimportant. 

 TRIBE I. PRIMUIiE'JE. Ovary superior. Cagsa/e valvular. Hilum ventral. 



Leaves radical. Rootetock woody or fleshy. Flowers umbelled...!. Primula. 



Leaves radical. Rootstock tuberous. Scapes 1- flowered 1*. (>///<,. 



Leaves cauline. Calyx 5-partite. Corolla yellow 2. Lys'imachia. 



Leaves cauline. Calyx 5-9-partite. Corolla white 3. Trientalis. 



Leaves cauline. Calyx campanulate, coloured. Corolla 4. Glaux. 



TKIBK IT. ANAGALIi'IDEJE. Ovary superior. Capsule opening trans- 

 versely. Hilum ventral. 



Calyx 4-partite. Filaments glabrous 5. Centnnculus. 



Calyx 5-partite. Filaments villous 6. Anagallis. 



