674 VAHEA 



Vahea Lam. (Landolphia p.p.)- Apocynaceae (i. i). 2 trop. Afr., 

 Madag. 



Vahlia Thunb. Saxifragaceae (i). 4 warm Afr., As. Fls. in pairs 

 (cymes) ; G. 



Vahy, Landolphia madagascariensis Benth. et Hook. f. 



Vailia Rushy. Asclepiadaceae (n. r). i Bolivia. 



Vaillantia Tourn. ex L. Rubiaceae (n. n). 2 Medit. 



Valcarcelia Lag. Leguminosae. Nomen. 



Valdivia Remy. Saxifragaceae (v). i Chili. 



Valentiana Rafin. Inc. sed. i Abyssinia. 



Valentina Speg. Boraginaceae (in), i Patagonia. 



Valentiniella Speg. (Valentino p-p.). Boraginaceae. i Patagonia. 



Valenzuelia Bert. Sapindaceae (i). 2 Chili, Argentina. 



Valerian, Valeriana ; red spur -, Centranthus. 



Valeriana Tourn. ex L. Valerianaceae. 180 Eur. , As., Afr., Am. 

 V. officinalis L. and V. dioica L. in Brit, (valerian). Fls. protandr. 

 The K forms a pappus upon the fr. 



Valerianaceae (EP., BH.). Dicots. (Sympet. Rubiales; Asterales^ZT.). 

 8 gen., 350 sp., Eur., As., Afr., Am. Herbs with exstip. 1. and dich. 

 branching. Fls. in cymose panicles, &c. , or unisexual, asymmetric, 

 usu. 5-merous. K sup., little developed at time of flowering, after- 

 wards often forming a pappus as in Compositae ; C usu. (5), often 

 spurred at base; A i 4, epipet., alt. with petals; anthers intr. ; G 

 (3); only i loc. is fertile, and contains i pend. anatr. ov. Achene. 

 Seed exalbum. Chief genera: Valerianella, Valeriana, Centranthus. 



Valerianella Tourn. ex Hall. (BH. incl. Pledritis DC.). Valerianaceae. 

 50 N. temp.; 4 Brit, (corn-salad or lamb's lettuce). Seed-dispersal 

 mech. various. In V. Auricula DC. the sterile loc. of the fr., in 

 V. vesicaria Moench the K, is inflated, in V. discoidea Loisel. it forms 

 a parachute, whilst in others it is provided with hooks. 



Valerianopsis C. A. Muell. (Valeriana p.p. EP.). Valer. 7 Brazil. 



Valetonia Durand ex Engl. Icacinaceae. i Brazil. 



Validallium Small (Allhun p.p.). Liliaceae (iv). i N. Am. 



Vallaris Burm. f. Apocynaceae (11. 2). 6 Indomal. 



Vallea Mutis ex L. f. Elaeocarpaceae. 3 Colombia, Peru. 



Vallecula (Lat.), grooves in fruit. 



Vallesia Ruiz et Pav. Apocynaceae (i. 3). 2 Florida to Argentina. 



Vallisneria Mich, ex L. Hydrocharitaceae. 3 trop. and subtrop. V. 

 spiralis L. (Eur.) a dioec. submerged water-pi, with ribbon 1. i fls. 

 in dense spikes enclosed in spathes; when ready to open the fls. break 

 off and float up to the surface, where they open. ? fl. sol. on very 

 long stalk, which brings it to the surface; it has green P, inf. ov. 

 and 3 large stigmas. Pollination occurs on the surface (cf. Elodea) ; 

 and after it the stalk curls up into a close spiral, dragging the young 

 fr. to the bottom to ripen. Veg. repr. by runners, rooting at the ends. 



Vallota Herb. Amaryllidaceae (i). i Cape Colony. Cult. orn. fl. 



Valonia, Qiierciis Aegilops L. 



Valvate (aestivation), 1. touching, not overlapping. 



Valves, the portions into which a fruit splits. 



Valvular dehiscence (anther), Berberis, Lauraceae. 



Vanclevea Greene (Grindelia p.p.). Compositae (3). i Utah. 



