370 NATURAL HISTORY OF PLANTS. 
variably imbricated ; highest usually outside, often a little broader 
than rest. Stamens 10, very perigynous; filaments free; anthers 
uniform linear-acuminate versatile 2-rimose. Germen central stipi- 
tate; ovules, more frequently few; style short subulate incurved ; 
apex minute stigmatiferous. Legume subdrupaceous thick, 1-seeded. 
—Lofty unarmed trees ; leaves imparipinnate or 1-foliolate ; stipules 
minute or 0; flowers’ in simple axillary or terminal branching 
racemes; bracts small caducous (Last of Tropical America’). 
291. Zollernia Marr.'—Flowers subregular; receptacle minute 
convex. Calyx gamosepalous, entire acuminate in bud, valvate, by 
anthesis sometimes unequally cleft, finally reflexed or deciduous. 
Petals 5, hypogynous imbricate ; vexillary a little broader external. 
Stamens 10 (or 9-15); filaments hypogynous free short; anthers 
uniform linear-acuminate, subbasifixed; cells introrse 2-rimose. 
Germen shortly stipitate; ovules ©; style short subulate; apex 
minutely and subobliquely stigmatiferous. Legume very shortly 
stipitate, ovoid or subglobose, apiculate rather thick, 2-valved. 
Seeds 1 or few, orbicular subulate or ovate; embryo exalbuminous ; 
cotyledons broad compressed; radicle short inflexed—Unarmed 
trees or shrubs; leaves simple shortly petiolate; stipules rigid; 
flowers‘ in terminal simple or more frequently branched racemes ; 
bracts small caducous; bractlets minute inserted on_ pedicel 
(Brazil). 
292? Exostylis Scuorr.'— Flowers regular hermaphrodite or 
polygamous; receptacle elongated obconical turbinate, disciferous 
within. Calyx perigynous gamosepalous, before anthesis subentire 
at apex minutely 5-dentate valvate, by anthesis valvate 3—5-partite 
and finally reflexed. Petais 5, perigynous subequal free; zstivation 
variable, sometimes . contorted, sometimes variably imbricated ; 
highest often inside. Stamens 10; free subequal, inserted within 
petals, to which 5 are opposite, the rest alternate; filaments subu- 
late ; anthers introrse affixed a little above base, apiculate 2-celled 
1 Handsome, white. 4 “© Yellow.” 
2 Species 4. Waxp., Rep., v. 565. 5 Species 4. TuL,, in Arch, Mus., iv. 190,— 
3 In Nov, Acta Nat. Cur., xiii. p. 13, t. C,  Watr., Rep., i. 841; v. 562, 
D.—Envi., Gen., n. 6813.—B. H., Gen., 560, 5 In Spreng. Syst., Cur. Post., 406.—B. H., 
n, 291,—Acidandra Mazr., mss. (ex ENDL).—  Gen., 560, n. 292.—Exostyles ENDL, Atakt., 
Coquebertia AD. Br., in Ann. Se. Nat., sér. 1, 26, t. 25; Gen., n, 6758. 
xxx, 180; in Duperr, Voy., Bot., t. 75. 
