CASSIACEAE 591 



Leaflets 6-12 mm. long : pedicels 1-1.5 cm. long : petals 1-1.5 cm. long. 1. P. pauciflora. 



Leaflets 15-25 mm. long : pedicels 4-9 cm. long : petals 2-3 cm. long. 2. P. pulcherrima. 



1. Poinciana pauciflora (Griseb. ) Small. A slender shrub, 1-2 m. tall. Leaves 

 spreading with 8-12 pinnae : leaflets relatively few, the blades oblong, sometimes broadly 

 so, to obovate, 6-12 mm. long, 3.5-5.5 mm. wide : pedicels 1-1.5 cm. long : corolla yellow : 

 petals 1-1.5 cm. long, the blades slightly crisped : pods oblong or elliptic-oblong, 2-3.5 

 cm. long. [Caesalpinia pauciflora (Griseb.) Benth. & Hook.] 



In sandy soil, Florida Keys. Also in the West Indies. 



2. Poinciana pulch&rrima L. A prickle-armed shrub or tree becoming 4 m. tall. 

 Leaves spreading, the larger with 6-18 pinnae : leaflets relatively few, the blades oblong to 

 cuneate, 15-25 mm. long, 5-11 mm. wide : pedicels 4-9 cm. long : corolla orange-red or 

 rarely yellow : petals 2-3 cm. long, the blades crisped : pods broadly linear or slightly 

 broadened upward, 9-13 cm. long. [ Caesalpinia pukherrima (L. ) Sw.] 



In sandy soil, southern peninsular Florida and the Keys. Also in the tropics generally. 



10. GUILANDINA L. 



Shrubs, with stout but weak stems, armed with recurved prickles. Leaves abruptly 

 bipinnate, with several pinnae. Leaflets 10-16 to each pinna, pellucid-punctate. Flowers 

 in racemes or panicles. Bracts narrow, deciduous. Calyx-lobes 5, imbricated, longer than 

 the tube. Corolla yellow. Petals 5, nearly equal. Stamens 10 : filaments pubescent near 

 the base : anthers opening lengthwise. Pods little longer than broad, flattened, prickle- 

 armed, 2-valved, 1-few-seeded. Seeds slightly flattened. 



Leaves with foliaceous stipules : seeds gray or lead-colored. 1. G. Crista. 



Leaves without stipules : seeds yellow. 2. O. major. 



1. Guilandina Crista (L.) Small. A straggling or sprawling shrub, armed with 

 hooked prickles, the foliage finely pubescent. Leaves 2-5 dm. long, the leaflets numerous, 

 the blades ovate to oblong-ovate or nearly oblong, mucronulate, 1.5-3.5 cm. long, rounded, 

 truncate or subcordate at the base : stipules foliaceous : racemes or panicles 1-4 dm. long : 

 bracts surpassing the pedicels, recurved: corolla dull yellow, 1-1.5 cm. broad: pods oval 

 or oval-oblong, 5-7 cm. long, prickly all over, obliquely short-beaked : seeds gray or lead- 

 colored. [Oaesalpinia Crista L. Guilandina Bonduc L. G. Bonducella L. ] 



In pine lands and hammocks, peninsular Florida and the Keys. Also in the tropics generally. 



2. Guilandina major (DC.) Small. Similar to G. Crista in habit. Leaves without 

 stipules : leaflets with relatively large blades which vary from 4-8 cm. in length : seeds 

 yellow. [G. Bonduc L., not L. Sp. PL Ed. 1. G. Bonduc var. majus DC.] 



In sandy soil, peninsular Florida and the Keys. Also widely distributed in the tropics. 



11. HOFFMANSEGGIA Cav. 



Herbs, sometimes a little woody at the base, the stem usually branched at the base. 

 Leaves bipinnate. Leaflets several to many, often glandular-punctate. Flowers race- 

 mose. Calyx-lobes 5, nearly equal, much longer than the tube. Corolla yellow or yellow- 

 ish. Petals 5, imbricated. Stamens 10, slightly declined : filaments distinct, often glan- 

 dular at the base : anthers opening lengthwise. Pods flat, narrow and more or less curved, 

 or broad and straight or slightly curved along the upper edge, few-seeded. The plants 

 flower mainly in the spring. 



Leaflets not glandular-punctate : pods long and narrow, strongly falcate. 



Petals with long claws, the claw of the standard thick and dilated : style clavate. 



1. H. Falcaria. 

 Petals with very short claws, the standard essentially sessile : style cylindric. 



Branches glabrous : filaments glandular : pods about 2 cm. long. 2. H. Drummondii. 



Branches pubescent : filaments glandless : pods about 1.5 cm. long. 3. H. Texensis, 



Leaflets glandular-punctate or prominently veined : pods broad and short, not falcate. 



Leaflets approximate, not veiny, obtuse. 4. H. Jamesii. 



Leaflets separated, prominently veined, acute. 5. H. caudata. 



1. Hoffmanseggia Falcaria Cav. Stem usually branched at the base, the branches 

 erect or ascending, 5-30 cm. tall, often pubescent and sometimes puberulent, simple or 

 sparingly branched : leaves with 5-9 pinnae : leaflets usually 10-20, the blades mainly ob- 

 long, 4-6 mm. long, obtuse, not glandular-punctate : calyx glandular-pubescent ; lobes 

 linear to linear-oblong, 7-8 mm. long : corolla 1.5-2 cm. broad : pods linear, 3-4 cm. 

 long, curved. 



On plains and prairies, Kansas to California and Texas. Also in Central and South America. 



