LYTHRARIACEM. 459 



glandular at base. Germen in great part superior ; cells 2, or more 

 rarely 3, complete or incomplete ; ovules oo , parietal or subbasilar, 

 ascending or transversely horizontal ; style erect cylindrical, some- 

 times divisible to apex ; at apex capitate stigmatose. Autbers of 

 female flower sterile. Keceptacle of male flower scarcely concave; 

 germen small enclosed ; style short ; placentas parietal, marginally 

 oo -ovulate ; ovules minute sterile. Fruit girt at base with receptacle, 

 and persistent sepals, capsular, loculicidally 2, 3-valvate ; valves 

 connected by persistent style, opening laterally. Seeds oo , elongate ; 

 testa loose membranous, produced on both sides to a wing sometimes 

 linear ; with tbin layer of albumen ; cotyledons of cylindrical fleshy 

 embryo shorter than thick radicle. — Branching trees ; leaves oppo- 

 site, simple entire petiolate exstipulate ; flowers (small) in axillary 

 simple or terminal ramose racemes. (East India, Malaya, Philip- 

 pine Isles.) — See p. 438. 



20. ?Psiloxylon Dup.-Th. — Flowers polygamo-diœcious ; recep- 

 tacle cupuliforin, Sepals 5, 6, alternate, inserted at margin, imbri- 

 cate, presently not contiguous. Petals 5, 6, alternate, inserted in 

 hollows, imbricate, articulate at base, deciduous. Stamens 10-1:2, 

 inserted 2-seriately with petals ; filaments free exserted (in female 

 flower short subulate sterile) ; anthers introrse, versatile, 2-rimose 

 (in female flower 0). Gyngecium (in male flower small sterile) 

 inserted at bottom of receptacle free; germen 3— 4-locular; style 

 short erect, presently 3-4-lobed ; lobes compressed, much reflexed at 

 top of germen, internally densely and thinly stigmatose-papillose. 

 Ovules in cells co (in male flower very small sterile), anatropous. 

 Fruit globose baccate, girt at base with receptacle, crowned with 

 style. Seeds oo , small; testa cancellate; cotyledons of exalbuminous 

 embryo thick plano-convex ; radicle terete. — A small tree ; leaves 

 alternate, entire and coriaceous, penninerved, pellucid -punctulate ; 

 flowers in shortly racemiform or corymbiform (spurious ?) cymes. 

 (Mauritius, Bourbon ?) — See p. 439. 



III. AMMANNIKŒ. 



21. Ammannia Houst. — Flowers hermaphrodite; receptacle cam- 

 panulate, turbinate or tubular, lined with thin disk (or 0). Sepals 

 4-8, inserted at margin of receptacle, 3-angular, valvate; accessory 



