64 GERANIACE^. (GERANIUM FAMILY.) 



Synopsis. 



1. TUIBULUS. Carpels 5, transTersely few-celled, few-seeded. Herbs. 



2. KALLSTROMIA. Carpels 10. 1 celled, 1 -seeded. Herbs. 



3. GUAIACUM. Carpels 2-5, compressed. 1-sccded. Trees. 



1. TRIBULUS, L. 



Sepals 5, imbricated in the bud, deciduous. Stamens 10. Ovary 5-ccllcd, 

 with 3-5 susj)cndcd ovules in each cell. Carpels of the fruit 5, spiny on the 

 back, transversely divided into 2 -.5 one-seeded cells, separating at maturity, with- 

 out a central axis. Albumen none. — Prostrate herbs. Leaves abruptly pinnate. 

 Peduncles solitary, 1 -flowered. 



1. T. cistoid.es, L. Leaves unequal ; leaflets 6- 16, linear-oldong, mucro- 

 natc, silky bcneatli ; peduncles as long as the leaves ; flowers large, yellow. — 

 Key "West. — Stems l°-2° long, hairy. Petals 2-3 times as long as the 

 calyx, 



2. KALLSTROMIA, Scop. 



Sepals 5-6, persistent, imbricated in the bud. Stamens 10-12. Ovary 10- 

 12-cellcd, the cells 1-ovuled. Carpels of the fruit 10-12, separating from each 

 other and from the central axis. Albumen none. — liuiry herljs, with the habit 

 of Tri HULLS. 



1 . K. maxima, Torr. & Gray. Leaves nearly equal ; leaflets 6-8, ob- 

 liquely oblong, mucronatc, the terminal pair larger ; peduncles shorter than the 

 leaves ; petals as long as the bristly CJilyx, yellow ; carpels rugose on the back. 

 — Key West and Savannah. — Stems l°-2° long. 



3. GUAIACUM, Plum. 



Sepals 5, deciduous. Stamens 10, with naked filaments. Ovary stalked, 

 2 - ."i-eelled, the cells 8-10-ovided. Carpels of the fruit 2-5, compressed, 1- 

 seeded Seed-coat fleshy. Embryo straight in hard thin albumen. — Trees. 

 Leaflets reticulate. Flowers blue or purple. 



1. G. sanctum, L. Branches opposite and forking, jointed, pubescent 

 when young; leaflets 6 or 8, obliquely obovatc or oblong, mucronatc, entire; 

 peduncles single or clustered at the forks of the branches, 1 -flowered, shorter 

 than the leaves ; sepals and petals obtuse ; flowers blue. — South Florida. — A 

 small tree with white bark. Flowers ^' wide. Fruit obovatc. 



Ordeu*32. GERANIACEiE. (Geranium Family.) 



Herbs or slinibby jdants, with tumid joints, alternate or opposite pal- 

 mately lobed stij)uhite leaves, ami liy])()gvnoiis and deeandrous flowiTS. 

 — Sepals .'5, imbricated in tlic bud, persistent. I'ctals !'>, eotivdltite in tho 

 bud, d(>eiiliif)U3. Stamens nionadelphous at the base ; liie .'"> ixterior ones 

 ehortcr and often sterile. Ovaries 5, 2-ovulcd, and, with tho persistent 



