676 VEGETATIVE REPRODUCTION 



Vegetative reproduction, by the detachment of portions of the veg. 

 system, which may grow into new plants; a branch may be detached 

 without modification (water pi., rhizomes, &c.), or may be specialised, 

 with supplies of reserves; special cases are bulbs, bulbils, conns, tubers, 

 buds, &c. ; Agave (bulbils), Agropyron (rhizomes), Ajuga (runners), 

 A/Hum, Asplenium, Begonia (adv. buds, tubers), Bettis (rhizomes), 

 Bertolonia, Bryophyllitm (adv. buds), Cactaceae (mammillae), Carda- 

 mine, Carex (off-shoots), Chlorophytnm(^QC\^\ shoots), Crassula (pi. 

 in placeof fl.), Crassulaceae, Cystopteris,Epilobium,Fadyenia, Fragaria 

 (runners), Gagea, Gesneriaceae (suckers), Globba, Hymenophyllaceae 

 (gemmae), Liliiim, Limnobinm, Limosella (runners), Lycopodium 

 (bulbils), Mannnillaria (mammillae), Mercurialis (rhizomes), Nastitr- 

 tinm, Nephrolepis, Ophioglossitm (adv. buds), Opuntia (branches), 

 Oxalis,Polygomti, Potentilla, Prionium, Psilotiiw (gemmae), Ranun- 

 culus, Remnsatia (hooked bulbils), Rosaceae, Ritbus, Saccharum, 

 Salicaceae (suckers), Sempervivum (offsets), Senecio (stem joints), 

 Sinnitigia, Tnssilago, Vallisneria, Zingiber. 



Veins (of 1.), the stiff vascular bundles running throughout. 



Veitchia H. Wendl. Palmae (iv. i). 4 Fiji, New Hebrides. 



Velaea DC. (Arracacia BH.). Umbelliferae (in. 4). 20 N. Am. 



Velamen, Araceae, Orchidaceae. 



Velezia L. Caryophyllaceae (n. 2). 4 Medit. to Afghanistan. 



Vella L. Cruciferae (2). 3 W. Medit. Thorns = stems. 



Velleia Sm. Goodeniaceae. 12 Austr. Ovary sup. 



Vellozia Vand. Velloziaceae. 40 Brazil, esp. campos. 



Velloziaceae (EP. ; AmaryUidateae p.p. BH.). Monocotyledons (Lilii- 

 florae). 2 gen., 70 sp., Brazil, Afr., Madag. Xero., chiefly of rocky 

 places or dry campos. Perenn. with dichot. branched stems and 1. 

 in rosettes (cf. Aloe). Upper parts of stems clothed with fibrous sheaths 

 of old 1., lower parts with adv. roots. The stem is thin, but its coating 

 of roots may be inches deep. Water poured over the roots disappears 

 as if into a sponge, and the pi. is thus able to supply itself from dew, 

 &c. during the dry season. The 1. also are xero. Fls. sol., term., 

 reg. P 3 + 3, coralline; A 3 + 3, or oo, in bundles. G 3-loc., with 

 placenta in the form of lamellae, peltately widened or thickened 

 at the outer side. Ovules oo . Caps. Endosp. Genera: Vellozia, 

 Barbacenia. Chief differences from Amaryllid. in A and plac. 



Velloziella Baill. (Digitalis p.p.)- Scrophul. (in. i). i Brazil. 



Velophylla Benj. Clarke. Podostemaceae. i Brazil. 



Veltheimia Gleclitsch. Liliaceae (v). 3 S. Afr. Cult. orn. fl. 



Velutinus (Lat.), velvety. 



Velvet bean, Muatna; -bur (W.I.), Priva; -grass (Am.), Holcus 

 lanatns L. ; -leaf (W.I.), Cissampehs Pareira L. ; -seed (W.I.), 

 Guettarda ; - tamarind, Dialium. 



Velvitsia Miern. Scrophulariaceae (ill. 2). i Angola. 



Venation, arrangemeut of the veins in a 1. 



Venegasia DC. Compositae (6), i California. 



Venenatus (Lat.), poisonous. 



Venice turpentine, Larix europea DC. 



Venidium Less. (Arclotis p.p. EP.}. Compositae (10). 18 S. Afr. 



Venose, with veins. 



