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

1982] CASSIINAE—SENNA 295
2. Lfts 8-14(-15) pairs.
9. Plants of the Andes s.-ward from Ecuador.
10. Widespread from Ecuador s. to basin of Lago Titicaca in Peru and adjoining
Bohvia; lfts ohvaceous on upper face, markedly darker green or brownish
beneath; longest petal (11.5-)12-16 mm; style 1-3.5 mm; pod at once relatively
long and long-stipitate, the stipe 5-14 mm, the body 5-11 x 0.9-2 cm.
95. 5. versicolor (p. 307).
10. Local either along e. margin of BoUvian Plateau from Cordilleras Real and de
Cochabamba to Potosi or on the Pacific slope in dept. Lima, Peru; lfts oUvaceous
subconcolorous, not darker beneath; longest petal 8-11 mm; style 0.6-1
mm; pod shorter, the stipe 1.5-3 mm, the body 3-5.5 x 0.7-1.1 cm.
11. Stems and foUage early glabrate; ovary thinly pilosulous, the vesture not
conceaUng the form; body of pod ±4-5.5 cm, the valves glabrous or almost
so; Bolivian Plateau. 96. S. aymara (p. 310).
11. Stems and foUage densely canescently pilosulous; ovary barbate, cocoon-
Uke, the vesture conceaUng the form; body of pod ±3 cm, the valves
densely pilosulous; Pacific slope of Andes in dept. Lima.
97. S. malaspinae (p. 311).
9. Plants of Mexico and Centr. America.
12. Style 1.5-11.5 mm; lfts 8-14 pairs; longer petals 14-32 mm; Sa. Madre del Sur,
Mexico (Michoacan to Oaxaca). 91. 5. multifoliolata (p. 295).
12. Style 0.4-1 mm; lfts 6-9 pairs, but in Mexico less than 8 pairs; longer petals
not over 7 mm; cf. S. guatemalensis var. guatemalensis.
Note: 92. S. koelziana, perhaps of this series but not treated in key, differs from aU in extremely
large flower, the longest petal nearly 4 cm, and has the multiovulate ovary (ovules ±64) of ser.
Corymbosae, q.v.
91. Senna muhifoUolata (P. G. WUson) Irwin & Barneby, comb. nov. Cassia
multifoliolata P. G. WUson, Kew BuU. 1958(1): 159. 1958.—Typus
infra sub var. multifoliolata indicatur.
Arborescent shrubs and slender trees at anthesis 2.5-8 m, variably pilosulous
with subappressed or spreading-ascending paUid hairs up to 0.3-0.8 mm, the
subterete hornotinous branchlets and lf-stalks densely so, the ample plurifoholate
lvs bicolored, the dull olivaceous lfts always glabrous above, paler and either
glabrous or thinly pilosulous beneath, the inflorescence composed of several or
many pedunculate, densely few-fld racemes axUlary to and shorter than fully
developed lvs.
Stipules herbaceous or chartaceous, relatively ample but variable in form and
pubescence, as described under the varieties, mostly 1-2 cm.
Lvs 13-31 cm; petiole (4-)5-9 cm, at middle 1.2-1.9 mm diam, bluntly 3-ribbed
latero-dorsaUy, shaUowly sulcate ventraUy; rachis (6.5-)8-18 cm, the longer in­
terfoholar segments 6-15(-19) mm; glands between proximal (l-)2^, sometimes
between aU pairs, the further distant smaUer, aU stipitate, in profile 1.2-2.4 mm,
the ovoid to narrowly fusiform acute head 0.3-1 mm diam, the depauperate distal
glands becoming hnear-spiculiform; hts (7-)8-14 pairs, ascending from rachis face
upward on pulvinule 1.6-2.6(-3) mm, in outhne oblong-elhptic or ovate obtuse
mucronulate, the lowest smaUest but the rest of subequal length, 16-42 x 6-16
mm, 2-4.1 times as long as wide, at asymmetric base either broadly cuneate or
rounded-subcordate, the margins plane, antrorsely ciholate, the centric straight
midrib prominulous only beneath, the ±8-12 pairs of camptodrome secondary
veins very slender and immersed on both faces, the tertiary venulation faint or 0.
Peduncles 5.5-9.5 cm; racemes (4-)6-16-fld, the axis becoming (0.4-)l-3.5 cm;
bracts variable hke the stipules, mosriy persistent through anthesis, finaUy deciduous;
pedicels at anthesis 1.5-2.5, in fruit 2.5-3 cm; buds ovoid obtuse, nodding
before anthesis, thinly pUosulous; sepals moderately graduated, the outer thinly