24 AIOLOTHECA 



Aiolotheca DC. Compositae (5). i Mex. 



Aiouea Aubl. Lauraceae (11). 20 trop. Am., W.I. 



Aiphanes Willd. = Martinezia Ruiz et Fav. (Palmae). 



Aiphytium, an ultimate formation. 



Alra L. p.p. Gramin. (9). 12 N. palaeotemp., 2 Brit, (hair-grass). 

 A. caespilosa L. and A.JJexuosii L. = Deschampsia ; A. canesceiis L. 

 = Corynephorus. A. elegans Gaudich., cult. orn. 



Airopsis Desv. Gramineae (9). i S. Eur., NW. Afr. 



Airosperma Lauterl). et K. Sebum. Ruhiaceae (n. i). 2 New Guinea. 



Air-plants, epiphytes. 



Airspaces, intercellular spaces, or spaces enclosed in folded leaves. 



Aitchisonia Hemsl. Rubiaceae (n. 6). i Afghanistan. 



Aitonia Thunb. (Nymania, EP.}. Meliac. (ill) formerly Sapind. i S. Afr. 



Aizoaceae (EP. ; Ficoidcae BH}. Dicots. (Archichl. Centrospermae). 

 20 gen., 650 sp. chiefly S. Afr., but also in Calif., S. Am., trop. Afr. 

 and As., Austr. Nearly allied to the other Centrospermae, but placed 

 in various other relationships by different authors, e.g. near Cactaceae 

 by B. and H., a relationship which is certainly very close and to which 

 Engler agrees. Xero. herbs or undershrubs with opp. or alt. exstip. 

 1., often fleshy, and with cymes of fls. Anatomy of interest (see Nat. 

 PJl.). _Formula P 4 5 or (4 5) (odd leaf, if 5, post.) ; A 5 or 3 or oo ; 

 G or G (3) or (oo), 3-loc. with oo ov. in each loc. Dedoublement is 

 very common in the androeceum, and in these cases, e.g. Mesembry- 

 anthemum, the outer sta. are frequently represented by petaloid stds. 

 Ovary usu. sup. with axile plac., but in Mesembryanthemum inf., 

 multiloc. with parietal plac., a very unusual feature brought about 

 during development (see M.j. Fr. usu. a caps. ; seed with embryo 

 curved round perisperm. 



Classification and chief genera (after Pax): 



I. MOLLUGINOIDEAE (perianth deeply j-lobed : "petals" 



or not: ov. sup. ): Mollugo. 



II. FICOIDEAE (perianth tubular): (G) Sesuvium, Trian- 



thema, Aizoon ; (Q) Tetragonia, Mesembryanthemum. 



Aizoon L. Aizoac. (11). 2 Afr., Medit., Austr. A oo in bundles. 



Ajax Salisb. = Narcissus L. p.p. (Amaryllid.). 



Ajowan, Cannn coplicum Benth. et Hook. f. 



Ajuga L. Labiatae (i. i). 30 palaeotemp.; 3 in Brit., incl. A. rep- 

 tans L. (bugle) and A. Chamaepitys Schreb. (yellow bugle, ground- 

 pine). The corolla has no upper lip. Veg. repr. by runners. 



Akania Hook. f. Akaniaceae. i E. Austr. 



Akaniaceae (EP., Sapind. p.p. BH.). Dicots. (Archichl. Sapindales). 

 i gen. Akania (q.v.). Tree with alt. imparipinnate 1. and paniculate 

 infl.; fl. 5 -0-; K 5, C 5 contorted, no disc ; A usu. 8, the 5 external 

 opp. sepals, G 3-loc. with 2 anatr. pend. ov. in each. Loculic. 

 caps. ; fleshy endosp. ; straight embryo. 



Akebia Decne. Lardizabalaceae. 3 China, Japan. A. qitinata Decne. 

 often cult. ; fls. monoecious, the lower usually ? ; the ? much larger 

 than the S (very unusual). The berries dehisce like follicles. Fr. ed. 



Akee, Blighia sapida Kon. 



Akene, achene. 



Alabastrum (Lat.), flower-bud. 



