Part 3, 1918] ALLIONIACEAE 173 
Involucre 3-10-flowered; free portion of the peri- 
anth salverform, with an elongate or very 
short, thick tube. 
Perianth-tube very short; involucre nearly 
rotate, accrescent after anthesis, 3-flowered. 21. ALLIONIELLA. 
Perianth-tube elongate; involucre campanu- 
late, little if at all accrescent, 3-10-flowered. 22. QuAMOCLIDION. 
Involucre 1-flowered. 
Free portion of the perianth salverform- 
campanulate, the tube very short; antho- 
carp terete. 23. HESPERONIA. 
Free portion of the perianth elongate-salver- 
form or funnelform, the tube elongate, 
often much elongate and very slender; 
anthocarp obtusely 5-angulate. 24, MIraBinis. 
VI. ABRONIEAE 
Wings of the anthocarp thin, transparent, extended around the body 
above and below it; flowers usually tetramerous; stamens 4. 25. TRIPTEROCALYX. 
Wings of the anthocarp thick, opaque, not extended around the fruit but 
interrupted above and below, or the anthocarp often exalate; flowers 
pentamerous; stamens 5 or rarely more. 26. ABRONIA. 
I. PISONIEAE. Shrubs or trees, or rarely only suffruticose, sometimes 
armed with spines. Leaves opposite. Flowers unisexual and dioecious or 
rarely perfect, the unisexual flowers usually with evident aborted organs of 
the other sex; perianth small, usually not differentiated into two parts, the 
free portion of the perianth of the pistillate flowers persistent upon the summit 
of the fruit. Anthocarp coriaceous or succulent, often with stipitate glands. 
Embryo straight. 
1. NEEA R. & P. Fl. Per. Prodr. 52. 1794. 
Neeania Raf. Princ. Somiol. 30. 1814. 
Mitscherlichia Kunth, Abb. Berl. Akad. 1831: 209. 1831. 
Nebra Noronha; Choisy, in DC. Prodr. 132: 447, assynonym. 1849. 
E-ggersia Hook. f. in Hook. Ic. 15: 1. 1883. 
Shrubs or trees, erect or subscandent, glabrous or pubescent, with terete or compressed 
branches. Leaves opposite or verticillate or rarely alternate, sometimes fasciculate, usually 
petiolate, the blades entire, coriaceous or herbaceous. Flowers unisexual, usually dioecious, 
commonly with abortive organs of the other sex, small, and white, reddish, or green, sessile 
or pedicellate, each usually tribracteolate at the base, arranged in axillary or terminal cymes, 
or sometimes solitary. Staminate perianth urceolate, globose, or elongate, shortly 4~5-dentate, 
the teeth induplicate-valvate. Stamens 5-10, included, inserted at the base of the perianth, 
the filaments unequal, the anthers oblong. Pistillate perianth urceolate or tubular, con- 
stricted above the ovary, 4-5-dentate and often contracted at the mouth. Ovary narrowly 
ovoid, included in the fleshy base of the perianth; style terminal, filiform, often exserted; 
stigma penicillate. Anthocarp ellipsoid, usually crowned by the persistent free portion of 
the perianth; utricle often indurate, smooth, striate, or costate. Seed with a hyaline testa 
adherent to the pericarp; embryo straight, the cotyledons broad; endosperm scanty, fleshy; 
radicle short, inferior, horizontal. 
Type species, Neea verticillata R. & P. 
Leaf-blades subcoriaceous. ‘ 
Leaves all or mostly crowded, fasciculate, the blades 4-9 mm. wide. 
Leaf-blades oblong to oblanceolate, 9-24 mm. long, usually cuneate 
at the base. 1. N. buxifolia. 
Leaf-blades oval or oval-oblong, 7-13 mm. long, rounded or very ; 
obtuse at the base. 2. N. Shaferi. 
Leaves distant, opposite, the blades 2-9 cm. wide. 
Staminate cymes few-flowered, sparsely puberulent; leaf-blades 2.2-3 
em. wide, abruptly acuminate at the apex. : 3. N. choriophylla, 
Staminate cymes many-flowered, densely ferrugino-puberulent; leaf- 7. 
blades 3.5-9 cm. wide, usualfy obtuse or rounded at the apex. 4, N. rotundifolia. 
Leaf-blades herbaceous. ; ; 
Blades of the principal leaves more than 3 cm. wide, sometimes 12.5 em. 
wide. 
