Class II. MONOCOTYLEDONS. 



ALISMACE^. 

 Sepals green. Ripe carpels indehiscent. Ovules solitary, basal. Flowers 



bisexual, whorled. Carpels free ALISMA. 



Sepals and petals similar. Ripe carpels dehiscent. Ovules numerous on 



branching parietal placentas BUTOMUS. 



ALISMA L. 



A. ranunculoides L. Leaves erect, linear-lanceolate, petioled, 3-ribbed. 

 Scape simple, bearing a single terminal umbel, or rarely a second one below it. 

 Flowers larger than in A. PlantagO, pinkish-white. 



Ditches, marshes, and bogs, occasional. June-September. 



A. PlantagO L. Water Plantain. A much taller plant. Leaves radical, 

 ovate to narrow-lanceolate. Flower-stem 1-3 ft. high, with unequal whorled 

 branches, forming a loose, pyramidal panicle. Flowers small, pale pink, on long 

 whorled pedicels. 



Ditches and stagnant water, common. June-August. The var. lanceo- 

 latum Will, also occurs. It differs in its more lanceolate leaves, ovate sepals, 

 and styles as long as the ovary. 



BUTOMUS L. 



B. umbellatus L. Flowering Rush. A tall, robust, and handsome water 

 plant with long, erect, sedge-like, triangular leaves sheathing at the base. Scape 

 2-4 ft. high, bearing a large umbel of pretty rose-coloured flowers with 3 thin, 

 lanceolate bracts at the base. 



Ditches and marshes in the Var, rare. June-July. It occurs in the stream 

 by the Sud de France Railway, close to the Toulon Railway Station, also at 

 Mourillon, La Garde, Le Pradet, and near Frejus. 



HYDROCHARIDACE^E. 

 Hydrocharis L. 



H. Morsus-ranse L. Frogbit. A small, floating plant with floating 

 horizontal stems and tufts of radical leaves, which are stalked, orbicular, entire, 

 cordate at base, and rather thick. Peduncles bearing 2 or 3 large white flowers 

 on long pedicels, enclosed at base in a spathe of 2 thin bracts. Outer perianth 

 segments pale green, shorter, and much narrower than the white inner ones. 

 Styles 6. v 



Ditches and other stagnant water near Frejus, Grand Escars, and La Garde, 

 in the Var. June- July. 



TYPHACE^E. 



Flowers in cylindric or oblong spikes TYPHA. 



Flowers in globose heads SPARGANIUM. 



TYPHA. REED-MACE. 



T. angustifolia L. Lesser Reed-mace or Lesser Bulrush. This is a smaller 

 and narrower plant than the Common Reed-mace T. latifolia (which is less 

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