104 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 8, No. 2 



3. All parts except upper leaf surface fuscous-velvety; calyx usually split into two parts. 

 J). A. kunhardtiana. 



3. Pubescence where present minute, densely and close ly-appressed, golden or golden- 



brown; calyx split into 3-5 irregular parts 4 



4. Leaves mostly 7-9-1 1-foliolate 5 



4. Leaves usually not over 5-foliolate (to 7-foliolate in A. occidentalism 6 



5. Leaflets 3-4 cm. wide, lanceolate-oblong, apices long-acuminate; mature buds about 



1.5 cm. long; petals oblong, 2 cm. long, 0.8 cm. wide; filaments about 1.5 cm. long; 

 ovary 5 mm. long with a stipe up to 10 mm. long 2. A. polyphylla. 



5. Leaflets (5.5-)7.5-ll cm. wide, oblong or oblong-oval, apex abruptly short-acuminate or 



acute; mature buds 2-2.5 cm. long; petals obovate-orbicular with cuneate base, 

 3-4.5 cm. long, 2.5-3.5 cm. wide; filaments 2.5-3.5 cm. long; ovary 7-8 mm. long 



(sometimes two ovaries produced per flower), stipe 1.5-1.8 cm. long 



la. A. insignis var. insignis. 



6. Hairs on lower leaflet surface strictly appressed, directed toward the apex and margin 



of leaflet, apex of leaflets not retuse or rotund 8 



6. Hairs on lower leaflet surface erect or suberect, collapsed and more or less decumbent 



on drying, apex of leaflets rotund and retuse 7 



7. Leaflets 7-8.5 cm. long, 3.5-4.5 cm. wide, lower leaflet surface obscurely pruinose- 



lepidote; mature buds about 1 cm. long, petals 2 cm. or less in length, stipe of ovary 

 glabrous, about 1 mm. long, style glabrous - 9. A. occidentalis. 



7. Leaflets 10-13 cm. long, 5.5-6.5 cm. wide, lower leaflet surface evenly glaucous; ma- 



ture buds about 2.5 cm. long, petals 3.5-4.5 cm. long, stipe densely pubescent, 6-9 

 mm. long, style sparsely gray-sericeous 1 b. A. insignis var. retusa. 



8. Ovary glabrous or subglabrous 9 



9. Ovary densely pubescent 10 



9. 31ade of leaflets 21-22 cm. long, oblong, with 12-16 pairs of primary veins; inflores- 

 cence a sparsely-branched panicle, 20-30 cm. long, petals oblanceol ate, 20-25 mm. 

 long, stipe of ovary nearly as long as ovary 8. A. macrophylla. 



9. ^lade 8.5-15 cm. long, ovate or elliptic-ovate, with 6-8 pairs of primary veins; in- 

 florescence a regularly-branched panicle 15 cm. long, petals oval (in submature bud), 



7 mm. long, stipe of ovary half as long as the ovary 7. A. yapacanensis. 



10. Stipe of glabrescent ovary about 10 mm. long, twice or more times longer than the 

 ovary 4b. A. latijolia var. pubescens. 



10. Stipe of persistently-pubescent ovary 2.5 mm. long, as long as or shorter than the 



ovary 1 1 



11. Venation of leaflets very conspicuous on both surfaces; petals obovate-cuneate or 



oblanceolate-cuneate, 10-20 mm. wide; leaves 1— 3-f oliolate 5. A. reticulata. 



11. Venation of leaflets barely prominulous below, obscure above; petals narrowly oblong 

 or oblong-oblanceolate, 5-7 mm. wide; leaves mostly 5-foliolate. . . . 6. A. discolor. 



1. Aldina insignis (Benth.) ^ndl. 

 la. Aldina insignis (Benth.) Endl. var. insignis. 



Allodia insignis Benth. Jour. Bot. Hook. 2: 91, as to type. 1840. 



Tree 7-10 m. tall, the branchlets, petioles, rachis, and petiolules glabrous; 

 leaves 7-9-foliolate, rarely 5-foliolate at the base of the inflorescence, the peti- 

 oles 15 cm. long, the rachis 10-25 cm. long, the petiolules 8-15 mm. long, trans- 

 versely corrugate, the leaflets plane, oblong or oblong-oval, 11-22 cm. long, 5°5- 

 10.5 cm. wide, rotund at the base, at the apex abruptly acute, rarely rotund and 

 retuse, above glabrous, below pallid, with numerous strongly-appressed minute 

 hairs, the primary veins plane above, prominulous to prominent below; inflores- 

 cence puberulent with appressed, ferruginous, minute hairlets, mostly racemose, 

 sometimes with a few branches, 15—30 cm. long, the bracts and bracteoles minute, 

 the pedicels 3-5 mm. long, the mature buds about 2*5 cm. long; calyx 2-2*3 cm. 

 long, densely ferruginous-tomentellous outside and gray villose inside, split into 

 4-5, usually erect lobes; petals 4-5, white, 4-4.5 cm. long, 2.5~3o5 cm. wide, 

 obovate-orbicular, base cuneate, glabrous; stamens very numerous, glabrous, the 

 filaments 25-35 mm. long, the anthers 6-10 mm. long; stigma simple, style subu- 

 late, incurved, glabrous, about 1 cm. long; ovary 3-4-ovulate, oblong, 7-8 mm. 



