Cassiinae pt 1 NY-Botanical_gardens_Vol. 35_1 - Copy.pdf - Antbase

12 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [VOL. 35
the ascending lobe mostly 2-7 mm long; petals variable in size but mostly
narrower or shorter or both at once, and either sessile or subsessile, the
claw not over 1 mm; anthers of 4 fertile antepetalous stamens 2.4-3.5 mm;
ovules 108-156; extra-Hylaean Brazil (centr. Goias and s. Ceara to Parana).
10- C. ferruginea (p. 38).
12. Racemes dense and short, subcorymbose, the expanded fls raised to level of
succeeding buds, and anthesis progressing upward over several days; pedicels
at full anthesis 6.5-9 cm; petals 30+ mm, their claw 3-5 mm; 3 long filaments
abruptly dilated in their distal inward curve into a plumply ellipsoid nodule
±1.5-3 X 1.5 mm; ovules ±80-114; s.-e. extratropical Brazil (lat. ±23-3TS).
12. C. leptophylla (p. 43).
II. Phyllotaxy distichous; fls pink or red when fresh, but drying yeUowish-tan; introduced
from Asia, occasionally planted but weakly or perhaps never spontaneous
in the Americas.
14. Filaments of 3 long sigmoid stamens abruptly dilated in their distal curve into
a globose or elhpsoid nodule and their anther pilosulous or puberulent dorsally;
petals mostly 18-35 mm; pedicels (2.5-)3-6 cm. 13. C. javanica (p. 46).
14. Filaments of 3 long sigmoid stamens not dilated, their anther glabrous; petals
10-14 mm; pedicels 10-19 mm. 14. C. roxburghii (p. 51).
1. Specimen in fruit, but lvs required:
15. Cavity of pod continuous, the septa vestigial; seeds obhquely basipetal, turned broadside
to the valves and bearing the hilum on the rim; valves of pod velvety-puberulent.
Lfts 14-18 pairs, the blade of longest pair 2-3.5 cm; s.-w. Mexico. 9. C. hintoni (p. 35).
15. Cavity of pod divided horizontally by complete septa into 1-seeded locules; seeds
transverse, turned broadside to the septa and bearing the hilum near base of one broad
face; valves of mature pod usually glabrous or remotely puberulent, velvety only in
C. fastuosa var. fastuosa of the Guianas and e. and centr. Amazonian Hylaea; allopatric,
unless obviously cultivated.
16. Petiole terete or almost so; lfts 3-7 pairs, the blade of larger ones 9-21 cm and the
secondary veins arising on each side of midrib 30-60; widely planted, rarely subspontaneous.
1. C. fistula (p. 14).
16. Petiole commonly grooved ventrally, emphatically so if lfts less than 8 pairs, the
secondary veins then 8-22 pairs; native and introduced spp., but those with only
3-7 pairs of lfts known only in the wild state, in Amazonia and the Guianas.
17. Pod bluntly 2-carinate both ventrally and dorsally by parahel contiguous pairs
of thickened emergent sutural ribs. Native spp., from the Guianas and Amazonia
to n.-e. Bolivia and s.-e. Brazil.
18. Secondary, tertiary and reticular venulation of lfts all sharply prominulous
on both faces; pedicels 6.5-9 cm; pod heavily woody 2-2.5 cm diam,
±80-114-ovulate; extratropical s.-e. Brazil. 12. C. leptophylla (p. 43).
18. Weak secondary and faint tertiary venulation of lfts prominulous on one
or both faces, but neither face sharply reticulate; pod thinly woody 1.1-1.7
cm diam, 108-234-ovulate; pedicels 2.5-6 cm, not over 4 cm in range of
the last.
19. Eastern Brazil, s. and e. from s. Ceara and centr. Goias; pod 108-156ovulate,
its seed-locules ±6-7 mm long. Valves of pod consistently
glabrate. 10. C. ferruginea (p. 38).
19. Amazon Basin from n.-e. Bolivia to n.-e. Brazil, thence n. to Surinam;
pod 162-234-ovulate, its seed-locules ±3-3.5 mm long. Valves of pod
either velvety {var. fastuosa) or glabrate (var. calva).
11. C.fastuosa (p. 40).
17. Pod either terete, its sutures not or scarcely thickened and fully immersed, or
dorso-ventrally carinate, but the ribs then 3, 2 (parallel-contiguous) ventral,
1 dorsal.
20. Pod extremely massive, 3.5-5 cm diam, the valves coarsely bluntly venose
and the sutural ribs coarse, at least 6 mm wide. Lfts 8-20 pairs, the longer
ones up to 3.5-6.5 cm. C. grandis (p. 30).
20. Pod narrower and less woody, sausage- or rod-shaped, less than 3 cm
diam, either terete or shallowly corrugated by constriction at the septa,
the valves veinless, the sutural ribs either immersed or, if prominulous!
much less than 5 mm wide.
21. Seeds embedded in viscous or gelatinous pulp, this drying to a flaky