422 



LXXXVIII. HYDROCHAIIIDACE^. [_AndcIiaris. 



104. 



101. 



102. 



96. 



94. 



99. 



the leaves. Perianth none or inconspicuous. Carpels 1-^1^ 



Submerged or floating plants. 

 PiSTiACE^. Spadix none. Plowers naked, 2 enclosed in a mem^ 



branous spatha. Carpels solitary, 1-celled.— Floating plants. 

 Typhace^. Flowers crowded on a thick spadix, which is not 



enveloped bv a spatha. 

 Arace^e. Mowers naked, crowded on a thick spadix enclosed 



within a spatha. 

 Kestiace^. Spadix none. Flowers bracteated, capitate. Ovary 



2— 3-celled, with solitary ovules. Fruit dry, capsular, loculicidal. 

 LiLiACE^. Spadix none. Flowers solitary (on the middle of the 



leaf). Ovary 3-celled ; cells with several ovules. Fruit succulent, 



indehiscent. — Shrubs. 

 Alismace^. Spadix and spatha none. Flowers stalked. Perianth 

 conspicuous, 3 inner sepals petaloid. Carpels numerous, 1-celIed, 



Div. I. 



iferior^ adnate with the tube of 



(Ord. LXXXVIII. 



) 



Leaves with nerves from the base to the point of the leaf, con- 

 nected by simple transverse veins. (Ori>. LXXXVIII. 

 XCI.) 



Orb. LXXXVIIL HYDROCHAKIDACE^ Juss. 



Floivers 



Limb of the 



perianth usually 6-parted; the 3 inner segments petaloid, rarely 

 wanting; 3 outer herbaceous (very rarely petaloid?). Stamens 

 free from the style. Ovary solitary, 1- (or spuriously 3 — 9-) 

 celled; placentas parietal, sometimes projected into the axis and 

 meeting there. Style 1 or none. Stigmas 3 — 9, entire or bifid. 



Style 1 or none. Stigmas 3 

 Fruit coriaceous or fleshy, indehiscent, 1 — 9-celled, 

 0. 



Albumen 



E 



Radicle pointing to the hilum. — Aquatics. 



floatin 



Mowers whitish. 



ft 



1. 



2. 

 3. 



Anacharis. Ovary 1-celled. Stigmas 3. Leaves verticillate. 

 Hydrocharis, Ovary 6-celled. Stigmas 6, cuneate, bifid. Flowers 

 6— 9-androus. 



Stratiotes. Ovar)'- 6-celled. Stigmas 6, linear, bifid. Floorers 

 polyandrous. 



Dioecious. 



containing a single 



1. Anacharis Rich. Anacharis. 



Spatha tubular, bifid at the apex, nearly sessile 



flower.— "" - — 



» 



Stam. 9. 



Barren fi. Perianth 6-partite 

 Fertile fl. Tube of the perianth filiform, elonjiated; 



Sterile stamens 3, subulate. 



limb 6-partite. 



cohering with the tube of the perianth. Stigmas 3. 



baccate, 1-celled, few- seeded.— Leaves verticillate or opposite 



Style filiform, 



Fruit 



J 



