L YROCARPA 399 



A. ELIGULA TAB (1. with ligule : spores all alike). 



B. L[GULA7"AE (1. with ligules: spores of two kinds). 

 Lycopodium L. Lycopodiaceae. 185 trop. and temp.; 5 in Brit., 



chiefly in mountain districts (club-mosses). The commonest is L. 

 flavatum L. (often called stag-horn moss) ; the others are L. Selago L., 

 L. alpimiin L., L. aniiotinuin L., and L. inundatnin L. All but 

 the last are xero. evergr. pi. with hard wiry 1. The stem branches 

 frequently, apparently dichotomously, but in reality usu. in a mono- 

 podial manner. Upon it are borne the roots, which branch dichoto- 

 mously, and are developed in acropetal succession. The 1., narrow 

 and unbranched, are usu. placed spirally upon the stem, but in some 

 form four ranks, as in most Selaginellas. Many have veg. repr. by 

 small bulbils in the 1. axils. [Prothalii, see Bruchmann in Bot. Zeit. 

 1899, p. 6.] 



Sporangia all alike in structure, containing spores of one kind 

 only ; placed upon the bases of 1. which are usu. crowded together to 

 form a terminal spike or strobilus. In Z . Selago some or all of the 

 sporangia are often replaced by small bulbils (cf. Polygonutn vivi- 

 paruni, Allium sp., Globba. &c.). 



Lycopsis L. Boraginaceae (iv. 3). 3 Eur., As. L. arvemis L., small 

 bugloss, in Brit. 



Lycopus Tourn. ex L. Labiatae (vi). 10 N. temp. L. curopaeus L., 

 gipsy wort, in Brit. 



Lycoris Herb. Amaryllidaceae (i). 4 Japan. 



Lycoseris Cass. Compositae (12). 10 C. Am. to Peru. 



Lycurus H. B. et K. Gramineae (8). 2 Mexico, New Mexico. 



Lygeum L. Gramineae (6). i Medit., L. Spartuin Loefl., one of 

 the esparto-furnishing grasses (cf. Stipa and Ampelodesm'a). 



Lyginia K. Br. Restionaceae. i S.W. Austr. 



Lygisma Hook. f. Asclepiadaceae (n. 3). i Burma. 



Lygistum P. Br. = Manettia L. p.p. (Rubi.). 



Lygodesmia D. Don. Compositae (13). 6 N. Am. 



Lygodisodea Ruiz et Pav. (Paederia p.p. EP.). Rubi. (n. 6). 4 trop. 

 Am. 



Lygodium Sw. Schizaeaceae. 25 trop. and subtrop. Twining ferns. 

 The stem remains comparatively undeveloped, but the 1. has un- 

 limited apical growth, and the long midrib twines around supports 

 like the stem of the hop, bearing pinnae at intervals. The 1. are 

 borne on the stem in one dorsal row. The sporangia are in a double 

 row on the back of the fertile pinnae, and each is surrounded by a 

 cup-like indusium 



Lyme grass, Elynnts arenarins L. 



Lyonia Nutt. Ericaceae (n. i). 16 E. As., N. Am., i circumpolar. 



Lyonnetia Cass. = Anthemis Michx. p.p. (Comp.). 



Lyonothamnus A. Gray. Rosaceae (inc. sed.). i California. 



Lyonsia R. Br. Apocynaceae (u. 2). 15 Austr., New Guinea. 



Lyperanthus R. Br. Oichidaceae (n. 2). 8 Austr., N. Z., New Caled. 



Lyperia Benth. (Chaenostoma p.p. E/ 3 .}. Scrophulariaceae (u. ;). 

 33 S. Afr. 



Lyrate (1.), dhided with large term, lobe, as in mustard. 



Lyrocarpa Hook, et Harv. Cruciferae (3). i California. 



