Piper — Notes on Canavalia with Descriptions of New Species. 177 



Whether the West Indies species is identical with C. lineata DC. 

 Prodromus 2:404.1825 based on Dolichos lineatus Thunb. Fl. Jap. 

 280.1784 described from Nagasaki, Japan, is not certain. The variations 

 of the seashore forms of Canavalia, especially the pod and seeds, indicate 

 that there may be several closely related species that have been referred 

 to by most botanists either as C. obtusifolia or C. lineata. 



Canavalia Iuzonica, n. sp. 



Herbaceous, annual; stems climbing to a length of 3 to 5 meters, terete, 

 sparsely appressed puberulent; petioles shorter than the leaflets, chan- 

 nelled above; petiolules somewhat fleshy, very short, densely puberulent; 

 leaflets membranaceous, elliptic to ovate, rounded or broadly angled at 

 base, mostly abruptly acuminate at apex, reticulate-veined, densely and 

 loosely puberulent beneath, glabrous or nearly so above except on the 

 veins, 5 to 10 cm. long; peduncles stout; racemes 10 to 20-flowered; ped- 

 icels very short, thick ; bractlets suborbicular, fugacious, as long as the 

 pedicels; calyx appressed-puberulent, 15 mm. long, the upper lip broad 

 and emarginate, the lower of three minute ovate acutish teeth; corolla 

 pink 3 to 4 cm. long; pods 10 to 17 cm. long and 2 to 2.5 cm. broad, 

 somewhat compressed, brownish, finely appressed-puberulent, the two 

 longitudinal ridges very close to the ventral suture, each pod with ten to 

 15 seeds; seeds oblong, somewhat compressed, dark brown, not shiny, 10 

 to 15 mm. long, the narrow black linear hilum somewhat curved and 

 nearly as long as the seed. 



This species occurs so far as known only in Luzon and the neighboring 

 island of Lubang. In Merrill's Flora of Manila it is referred to C. 

 ensiformis (L. ) DC. from which it is abundantly distinct. It can not be 

 matched by any of the species native to India. 



The herbarium material is somewhat variable but represents probably 

 a single species. The form above described as typical is represented in 

 the following specimens from 



Los Banos, Laguna, C. F. Baker, Nos. 553 and 2791 (type in herbar- 

 ium, Philippine Bureau of Science); L. Clements, Jan. 9, 1913; 

 and G. C. Santos, Jan. 18, 1913; 

 Manila, E. D. Merrill, No. 4094 . 



Most of the herbarium material differs in having the leaflets rather 

 firmer in texture and sparsely appressed-puberulent beneath, and the 

 calyx sparsely puberulent to glabrous. Forms with ovate or elliptic ovate 

 leaflets include: 



Manila, Merrill No. 2050; Antipolo, Rizal, Ramos Nos. 90 and 1596; 

 Union Province, E. Fenix No. 12; Norzagaray, Bulacan, Foxworthy 

 Jan. 1911; Tuguegarao, Cagayan, Bolster No. 188; Limay, Bataan, 

 Curran Dec, 1909; Bataan, Robinson, Dec. 31, 1909; Mt. Mariveles, 

 Elmer No. 6870; Lamao, Bataan, Merrill No. 3811; Lubang Island, 

 Merrill No. 963. 



Forms with small elliptic or elliptic-ovate, obtuse to acutish leaflets in- 



