42 NATURAL HISTORY OF PLANTS. 



caducous. Stamens 5, alternipetalous, inserted between as many 

 oppositipetalous lobes of the disk, very perigynous ; filaments free ; 

 anthers introrse cordately 2-dymous, 2-riuiose. Germen inserted 

 at bottom of receptacle, inferior at base only, otherwise free; 

 cells 5, alternipetalous, more or less incomplete ; ovules in each 

 2, basilar ; style cylindrical, apex divided into 5 short stigmatose 

 branches. Fruit inferior, crowned with calyx, dry or crustaceous, 

 indehiscent, 1-spermous ; testa of exarillate seed membranous ; 

 albumen scarce ; cotyledons of straight embryo oblong. — Very ramose 

 (ericoid) shrubs ; leaves (evergreen) alternate closely packed small 

 coriaceous enervate subsessile ; stipules minute glanduliform, cadu- 

 cous ; flowers ^ in compound terminal racemes ; pedicels articulate, 

 bracteolate under the apex.^ [Texas^ North Mexico?) 



27. Giossopetalon A. Geay.* — Flowers hermaphrodite; receptacle 

 lined with thin glandulous cupular 10-crenate disk. Sepals 5, short 

 persistent. Petals 5, alternate, muchlonger, linear ligulate, marcescent. 

 Stamens 10, 2-seriate ; filaments inserted in hollows of disk peri- 

 gynous, short free ; anthers short introrse. Germen free, im- . 

 mersed at base in central disk, 1-locular; style very short, apex 

 capitellate ^ stigmatose ; ovules 2, subbasilar subereet ; micropyle 

 extrorsely inferior. Fruit dry coriaceous (finally 2-valvate ?) 

 obliquely ovoid apiculate, much striated longitudinally ; seeds 1, 2, 

 ascending; funicle short dilated to a small 2-lobed aril ; testa short ; 

 embryo...? — An extremely ramose and spinose glabrous shrub; 

 branches punctulate ; leaves alternate small entire subspathulate, 

 exstipulate ; floral leaves squamiform ; petiole much dilated at base ; 

 flowers^ axillary pedunculate, bracteate at base. {Texas, New 

 Mexico!') 



28. Canotia Toee.« — Flowers regular hermaphrodite. Galyx 

 small, glandulously decurrent at base, 5-fid, valvate, persistent. 

 Petals 5, sessile, imbricated. Stamens 5, alternipetalous, hypo- 

 gynous; filaments free subulate, persistent; anthers cordate shortly 



1 Small, white. 453.— Waip. Aim. iv. 425 ; vii. 583. 



2 A genus resembling some Ehnmnacem in < Proe.Amer. AcaA.:si..'JZ (Sapiudacese ?) PI. 

 the form of its receptacle and its ovules, differ- Wright, ii. 29, t. 12, B. — B. H. Gen. 368 n 31 

 ing chiefly in its alternipetalous stamens. The ° Stigma hence emarginate subreniform. 

 structure of its flowers strongly recalls certain ' Small, white. 



Mi/rtaeeai, from which it is distinguished gene- ' Spec. i. G. spinesoens A. GriHY.^WALP. 



rally by the leaves and the germen not being Ann. iv. 426. 



free. « Wippl. Exp. Bot. 12.— H. Bn. Adamonia, 



3 Spec. 3, 4. TuECZ. Bull., Mose. (1868), i. x. 18. ' 



