364 T5-- FRANKENIACEAH — I53. TAMARICACEAE 



united in the middle, clawed, usually with a scale-like appendage, persistent. 

 Stamens 4 — 6, hypogjmous. Filaments luiited at the base, broadened in the 

 middle. Anthers versatile, opening outwards by longitudinal slits. Ovary 

 I -celled, with 2 — 3 parietal placentas bearing the ovules at their base. 

 Style simple with 2 — 3 stigmas, or 2 — 3-cleft at the top. Ovules with a long 

 ascending funicle, inverted. Fruit a loculicidal capsule. Seeds with a copious, 

 mealy albumen and a straight, axile embryo. — Genera 2, species 10. 



Stamens 5, equal. Carpels 2. Petals without a ligule. Small shrubs. — 

 Species i. Island of St. Helena. Used as a substitute for tea. (Under 



Frankenia L.) Beatsonia Roxb. 



Stamens 4 or 6, the outer ones shorter. Carpels usually 3. Petals usually 

 with a ligule. — Species 10. North Africa, northern Central Africa, 

 and South Africa Frankenia L. 



FAMILY 153. TAMARICACEAE 



Shrubs, undershrubs, or trees. Leaves alternate, undivided, exstipulate. 

 Flowers terminal, solitary or in racemes, regular, 4 — 5-, rarely 6 — 7-mcrous. 

 Petals hypogynous, free. Disc present. Anthers versatile, opening by 

 longitudinal slits. Ovary superior, i-celled, with basal or parietal placentas. 

 Ovules numerous, ascending, inverted, with a ver}^ short funicle. Styles or 

 sessile stigmas several, free or united at the base. Fruit a capsule. Seeds 

 hair}^ ; embryo straight. — Genera 3, species 25. (Plate loi.) 



1. Flowers solitary. Petals 5, with an appendage on the inner face. Stamens 



numerous. Styles distincth^ separated from the ovar\', thread-shaped ; 

 stigmas small, simple. Placentas extending throughout the ovary, but 

 bearing ovules at the base only, later on separating from the wall of the 

 ovary. Seeds with a boss at the top, hairy all round, albuminous. — 

 Species 3. North Africa. Used for making salt. [Tribe REAU- 



MURIEAE.] Reaumuria L. 



Flowers in racemes. Petals unappendaged. Stamens as many or twice 

 as many as the petals. Ovary beaked. Styles short and thick or 

 wanting ; stigmas broadened. Placentas basal-subparietal, cushion- 

 shaped. Seeds without a boss, but with a tuft of hairs at the top, 

 exalbuminous. [Tribe TAMARICEAE.J 2 



2. Anthers turned inwards. Stigmas sessile, cushion-shaped. Seeds with 



a stalked t'.ift of hairs. — Species i. North West Africa (Algeria). 



Myricaria Desv. 

 Anthers turned outwards. Filaments free or almost free. Stigmas 

 borne upon a short style, more or less spatulate. Seeds with a sessile 

 tuft of hairs. — Species 20. Some of them 3'ield timber, tanning and 

 dyeing materials, and medicaments, or serve as ornamental plants. 

 (Plate loi.) " Tamarisk." Tamarix L. 



