838 CONTKIBUTION"S FROM THE NATIONAL HERBARIUM. 



2. Hybanthus yucatanensis Millsp. Field Mus. Bot. 1: 404. 1898. 



Known only from the type locality, Izamal, Yucatan. 



Shrub, about 2.5 meters high; leaves alternate or fascicled, the blades 

 rhombic or rhombic-lanceolate, 2.5 to 3 cm. long, crenate-serrulate, glabrous; 

 peduncles axillary, 1 cm. long, at apex bifurcate and bearing about 15 fascicled 

 flowers ; keel petal about 2.5 mm. long, with dilated apex. 



3. RINOBEA Aubl. PI. Guian. 1: 235. 1775. 

 Shrubs or trees; leaves (in ours) opposite; stipules small, deciduous; 

 flowers regular, in axillary racemes (in ours); sepals 5, equal; petals 5, 

 lance-ovate, recurved at apex; stamens 5, free, the connectives dilated into 

 a scale exceeding the anthers; fruit a capsule, in ours 3-seeded. 

 Anther cells not appendaged at apex ; connective scales subentire. 



1. R. pilosula. 

 Anther cells appendaged at apex ; connective scales coarsely erose. 



2. R. guatemalensis. 



1. Binora pilosula Blake, sp. nov. 



Type from San Juan Bautista, Tabasco (Rovirosa 100; U. S. Nat. Herb, 

 no. 40190). 



Pilosulous shrub, glabrate ; leaf blades oval or obovate-oval, 7.5 to 11.5 

 cm. long, crenate or crenate-serrulate. nearly glabrous ; petioles pilosulous, 6 

 mm. long; racemes rufidulous-pilosulous, 8 cm. long; petals 5 mm. long. 



2. Kinorea guatemalensis (S. Wats.) Bartlett, Proc. Amer. Acad. 43: 56. 1907. 

 Alsodeia guatemalensis S. AVats. Proc. Amer. Acad. 21: 458. 1886. 



Oaxaca. Guatemala and Honduras; type from Rio Chocon, Guatemala. 

 Branches puberulous, glabrate; leaf blades oval to elliptic-oblong, 7 to 14.5 

 cm. long, subentire; petals 5.5 mm. long; capsule 13 to 19 mm. long. 



DOUBTFUL GENUS. 

 ScHWEiGGEKiA MExicANA Schleclit. Linnaea 12: 204. 1838. Described by 

 Schlechtendal from specimens in Lehmann's herbarium said k> be from Mexico. 

 The genus is not definitely known outside of Brazil, and it is probable that 

 the specimens seen by Schlechtendal were erroneously labeled. 



111. FLACOURTIACEAE. Flacourtia Family. 

 Trees or shrubs; leaves alternate, petiolate, simple, entire or toothed, com- 

 monly distichous, frequently pellucid-punctate ; flowers usually perfect, some- 

 times unisexual, mostly small and inconspicuous ; sepals free or united, im- 

 bricate or valvate ; petals free, as many as the sepals or more numerous, often 

 absent ; stamens usually numerous, distinct or united ; fruits usually baccate 

 or capsular, containing 1 to many seeds. 

 Petals present. 



Stamens in fascicles opposite the petals. Flowers racemose 1. HOMALIUM. 



Stamens distinct or nearly so, not fasciculate. 



Fruit covered with long spinelike bristles 2. ONCOBA. 



Fruit not bristly. 



Ovary at anthesis 1-celled. Seeds numerous 3. BANABA. 



Ovary at anthesis 3 to 5-celled. 



Fruit usually 1-seeded ; flowers in panicles 4. HASSELTIA. 



Fruit many-seeded; flowers fasciculate/ or umbellate at ends of 



branches 6. PBOCKIA. 



Petals none. * 



Flowers terminal ; sepals valvate. 



Flowers racemose; stamens 7 to 9 5. LUNANIA. 



Flowers fasciculate or umbellate ; stamens numerous 6. PBOCKIA. 



