Vines and Climbing Plants of Puerto Rico and the Virgin Islands

Vines and Climbing Plants of Puerto Rico and the Virgin Islands 241
2a. Leaves unifoliolate…………………………………………………………………..………....… 3
2a. Leaves paripinnate or imparipinnate…………………………………………………..……….. 4
3a. Leaflets cordiform, with a pair of stipels at the base; flower 3-5 cm long; calyx and corolla bright
red; legume oblong, 6-8 cm long ……………………………...………. 15. Neorudolphia
3b. Leaflets ovate to oblong, without stipels at the base; flower < 1 cm long; calyx green; corolla pink;
legume almost circular, 2-2.3 cm long ……………………....7. Dalbergia ecastaphyllum
4a. Leaves paripinnate; seeds subglobose, brilliant red with a black spot at the base …...… 1. Abrus
4b. Leaves imparipinnate; seeds brown, black, or cream-colored…………………………….…… 5
5a. Leaflets opposite, with stipels at the base; legume oblong……………………………………. 6
5b. Leaflets alternate, without stipels at the base; corolla pink; legume circular or almost circular in
outline …………………………………………………………………………………...........…… 7
6a. Leaves with 5-7 leaflets; calyx with the dorsal lobes connate at the base; corolla blue-violet, the
standard broadly ovate or circular, the wings as long as or longer than the keel; anthers yellow
…………………………………………………..………………..…................ 6. Clitoria (in part)
6b. Leaves with 11-21 leaflets; calyx with the dorsal lobes free to the base; corolla red-orange, the
standard oblong, elongate, the wings shorter than the keel; anthers white ………. 2. Barbieria
7a. Stipules spiny, persistent; fruit semicircular, woody ……………………….… 12. Machaerium
7b. Stipules minute, deciduous, not spiny; fruit flattened, circular, chartaceous
…………………………………………………………………………........ 7. Dalbergia monetaria
8a. Legume obtusely 4-angular; seeds sticky …..………………………….….... 6. Clitoria falcata
8b. Legume flattened or almost cylindrical, not quadrangular; seeds not sticky………………...… 9
9a. Leaves lacking stipels at the base of the leaflets ……………………………..…… 4. Canavalia
9b. Leaves with stipels at the base of the leaflets………………………………………………..... 10
10a. Standard oblong, elongate; legumes with rigid, elongate, stinging hairs ………..... 14. Mucuna
10b. Standard circular to reniform in outline; legumes lacking stinging hairs………………….... 11
11a. Standard 3-4 cm wide, more than twice as long as the keel and the wings .…… 5. Centrosema
11b. Standard < 2.5 cm wide, less than twice as long as the keel and the wings…………….…… 12
12a. Legume cylindrical or almost cylindrical, sometimes compressed in the portion between the
seeds………………………………………………………………………………………….......... 13
12b. Legume not cylindrical, flattened or compressed laterally………………………………..… 15
13a. Corolla maroon or purple ………………………………………………….... 13. Macroptilium
13b. Corolla pink, lavender, or yellow…………………………………………………………… 14
14a. Stipules auriculate; nodes of the rachis of the inflorescence swollen, with extrafloral nectaries;
corolla yellow ……………………………………..……………......................… 21. Vigna luteola
14b. Stipules truncate at the base; nodes of the rachis of the inflorescence not swollen, lacking extrafloral
nectaries; corolla lavender or pink ..……..…………………………....................... 17. Phaseolus
15a. Legumes conspicuously septate between the seeds……………………………………….…. 16
15b. Legumes not septate between the seeds………………………………………………….….. 19