230 PRACTICAL BOTANY. 



672. Flowers on a spadix 673 



Flowers not on a spadix 674 



673. Spadix (subglobose) enveloped in a shell-form 

 gpathe. Perianth deeply 4-parted ; segments hood-form or 

 wedge-shaped, with the apex bent inward, truncate, fleshy, 

 becoming spongy. Style 4-coi-nered. Stamens 4. Berries 

 globose. Leaves cordate, oval, acute. 



Symplocarpus f cetidus, Kutt. 

 Spadix not in a spathe. Perianth 4- to 6-sepalled. 

 Stamens 4-6. Stigma sessile. Fruit a green utricle. . Flow- 

 ers yellow, at the summit of the scape, which thickens up- 

 ward into the yellow spadix. Leaves lanceolate. 



Oroutium aquaticum, L. 



674. Perianth 4-parted, rotate (white). Stamens 4. 

 Ovary globular. Stigma simple. Berry. Flowers in ter- 

 minal racemes. Stem with 2 (sometimes 3) cordate leaves. 



Majauthemum bifolium, D.C. 

 {^Smilacina bifolia, Ker.) 



Calyx of 4 sepals (petals wanting). Stamens 2. 

 Silicles compressed. Cauline leaves incised, those of the 

 branches linear. (115) Iiepidium ruderale, L. 



675. Flowers subtended by 2 or 3 bracts .676 



Flowers not subtended by 2 or 3 bracts 677 



676. Leaves prickly-pointed, awl-shaped, fleshy. Divi- 

 sions of the perianth at length horizontally winged. Flowers 

 solitary in the axils, with 2 leaf-like bracts. Embryo spiral. 



Salsola Kali, 1^ 

 Leaves not prickly, nor fleshy. Lobes of the peri- 

 anth net winged. Filaments united into a tube, bearing 5 

 1-celled anthers and 5 strap-shaped appendages. Stem not 

 leafy above. Flowers in cottony spikelets, crowded- into an 

 interrupted spike. Embryo annular. 



Frcelichia Floridiana, Moq. 



677. Styles or stigmas 4, 3, 2, or solitary and bifid.. .678 

 Style 1 ; stin;ma capitate. Perianth bell-shaped, 



deeply 5-cleft (white, tinged with red); lobes oblong. Sta- 

 mens 5. Flowers solitary, axillary. Leaves fleshy. 



Glaux maritima, L. 



