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

350 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [VQL. 35
separating when ripe into a brown almost smooth exocarp and a palhd papery
endocarp, the cavity lacking pulp, the membranous interseminal septa complete,
±3 mm apart; seeds 2-seriate, turned broadside to the septa, plumply compressedobovoid
±6.5 X 3.5 mm, the lustrous brown testa microscopicaUy pitted, exare­
olate.—Collections: 3.
Disturbed moist forest, in residual thickets and on roadsides, ±2250 m, known
only from the upper slopes of Mt. Itatiaia near 22°25'S in n.-w. Rio de Janeiro,
BrazU.—Fl. XI-IL
A species very distinct in its paUid semicordate stipules and short sausage-
shaped pod. Except that the sepals are densely puberulent dorsally, the individual
flower is almost that of S. organensis, and the relatively few ovules are also
suggestive of ser. Stipulaceae, to which we provisionally referred the flowering
typus. A pod from the type-locality (V. F. Ferreira 171, RB) proves, however,
to be of the cyUndric type characteristic of ser. Coluteoideae in which the seeds
are doubled up into two fully separated parallel ranks.
Here may be appropriately mentioned sterile specimens (Glaziou 8417, C, K,
P) of a senna with fohaceous stipules resembling those of S. itatiaiae but about
as wide as long and up to 2 cm diam. They were collected, according to Glaziou's
Liste, on the "rochers du Retiro" at Petropolis, Rio de Janeiro. The leaves
suggest some coarse form of S. subulata, but are potentially larger (to 24 cm
long) and may have up to eight pairs of leaflets more prominently veined than
those of any species with simUar stipules. Their identity will remain an intriguing
puzzle untU flowering specimens can be obtained.
112. Senna cajamarcae Irwin & Barneby, sp. nov., habitu S. mandoni (Bentham)
Irwin & Barneby revocans, imprimis stipuhs rephcatis bracteisque
florahbus firme herbaceis diu persistentibus, stylo parum incurvo,
ovulis magis numerosis 30-36 (nee 12-25) necnon legumine turgido
subtereti (nee plano-compresso) plane diversa.—PERU. Cajamarca,
prov. Chota: ceja de montaiia, 2200 m, cerca a Huambos,
14.VIII.1952, R. Ferreyra 5426.—Holotypus, NY.
Cassia pendula var. bracteata Lasseigne, Iselya 1(1): 9, fig. 2. 1979.—"PERU, CAJAMARCA:
entre Porconcillo y Cajamarca, carretera a Bambamarca, 14 November 1971, Isidro Sanchez
Vega 847.''—Holotypus, SI, seen only in photograph (protologue).
Shrubs and treelets ±1.5-3 m, with paUid hornotinous and fuscous or almost
black older branchlets, appearing glabrous but in fact residually puberulent on Ifstalk,
pulvinule and axis of inflorescence (or some of these) and the hts minutely
sparsely ciUolate, the fohage strongly bicolored, the firmly chartaceous hts above
dark dull green with palhd hne along midrib, beneath palhd-glaucescent overaU,
the early racemes lateral and scarcely as long as subtending h, some later ones
forming a shortly exserted panicle.
Stipules ascending, firmly herbaceous oblanceolate or eUiptic-oblanceolate
4-9 X 1.5-3 mm, the blade rephcate on itself, persistent into and commonly past
maturity of associated h.
Lvs mostly 6-14 cm, some smaher ones high in the inflorescence not further
described; petiole including httle differentiated pulvinus 1.5-3 cm, at middle 0.6-1
mm diam, subterete, the ventral sulcus narrow or obscure, becoming more evi­
dent on rachis, this 2-6.5 cm, hs longer interfoholar segments (8-)10-17 mm;
glands (caveat: much eaten) between proximal and commonly between aU
pairs but the distal one, subsessUe ovoid-apiculate, the lowest one in profile
0.9-1.7 X 0.45-0.7 mm, the distal ones often smaller; pulvinules 1.2-2 mm; lfts