39 8 LUPSIA 



Lupsia Necker (Galactites BH.). Compositae (n). 3 Medit. 



Luridus (Lat.), dingy brown or yellow. 



Luteus(Lat.), yellow; luteolus, pale yellow; lutescens (Lat.), yellowish. 



Luvunga Buch.-Ham. Rutaceae (v). 5 Indomal. 



Luxembergia A. St Hil. Ochnaceae. 8 Brazil. 



Luziolajuss. Gramineae (6). 6 Brazil to Alabama. 



Luzonia Elmer. Leguminosae (in. 10). i Luzon. 



Luzula DC. Juncaceae. 65 temp., chiefly Old World; 6 in Brit, 

 (wood-rush). Rhiz. as in Juncus; 1. usu. flat. 



Luzuriaga Ruiz et Pav. (Enargea Banks). Liliaceae (x). 3 S. Am., N.Z. 



Lyallia Hook. f. Caryophyllaceae (1.3). i Kerguelen. 



Lycaste Lindl. Orchidaceae (n. 12). 30 trop. Am. Epiphytes. A 

 chin is formed by an axial outgrowth from the column. 



Lychniothyrsus Lindau. Acanthaceae (iv. A), i Brazil. 



Lychnis (Tourn.) L. (BH. incl. Agrosteinma L., Gitkago Adans., 

 Melandriuni Roehl, Viscaria Riv.). Caryophyllaceae (ii. i). loN. 

 temp. |^: ; 3 in Brit., incl. L. Flos-cuciili L. (ragged robin). Fls. 

 protandrous, suited to bees and Lepidoptera. Thefls. often show the 

 sta. filled with a black or brown powder, instead of pollen ; this is 

 the spores of the fungus Ustilago antherantm, which are thus dis- 

 tributed from plant to plant, like pollen, by the visiting insects. [For 

 L. dioica L. see Melandrium.] 



Lychnodiscus Radlk. Sapindaceae (i). 2 W. Afr. 



Lychnophora Mart. Compositae (i). 17 S. trop. Brazil. 



Lychnophoriopsis Sch. Bip. Compositae (i). 2 Minas Geraes. 



Lycium L. Solanaceae (2). 75 temp. Many have thorny twigs; 

 L. of nun L. (Kaffir thorn) is used for hedges in S. Afr. L. barbarian 

 L. often cult, under the name tea-plant. 



Lycomormium Reichb. f. Orchidaceae (ii. 13). i Peru. 



Lycopersicum Hill (Solanum p.p. EP.). Solanaceae (2). 10 S. Am. 

 L. esculent inn Mill. (Solatium Lycopersicum L.) is the tomato or 

 love-apple. 



Lycopodiaceae. Lycopodiales, Eligulatae. 2 gen., 190 sp., trop. and 

 temp. The fertilised ovum gives rise directly to the leafy plant ; 

 the embryo has a suspensor and a foot; and its upper part at first 

 forms a tuber-like organ, the protocor/n, from which the 1. and stem 

 develope. In P. the stem is short and unbranched, in L. long and 

 much branched, bearing small simple 1., and roots developed in aero- 

 petal succession. The sporangia are axillary, and form as a rule a 

 dense terminal cone or strobilus. The spores are all of one kind and 

 give rise on germ, to fairly large monoec. prothalli. 

 Classification and genera : 

 Small pi. with a few rad. 1. and head of sphorophyllson leafless stalk: 



Phylloglossum. 

 Larger pi. with no rad. 1. and sporophylls on leafy stalk : 



Lycopodium. 



Lycopodiales. One of the main divisions of Pteridophyta. Mostly leafy 

 plants, with well developed stems and small unbranched 1. The 

 sporophylls are usu. massed together into cones, recalling those of 

 the Gymnosperms. Sporangia single at base of 1. on upper side, or 

 in axil, i-loc. They are classified as follows. 



