210 DIFFERENTIATION AND SPECIFICITY OF STARCHES. 



Ndumbiinn luteum Wilkl. (Nehtntbo lidca Pers.) Dry seed. — Grains as in the preceding, thougli on 

 the whole soniewliat broiuler. Length 20/i. 



Cistus vulgaris Spach. var. C. articus Linn. (Cislaccce.) Dry seed. — Grains oval, elliptical, oblong, 

 blunt-triangular, and at times almost reniform; two-thirds to almost as broad as long; the 

 broader ones compressed; no lamellae; usually a longitudinal slit is seen in the narrow aspect. 

 Length 21ju. 



Helianthernum crgypticum Mill. iCistacece.) Dry seed. — Grains oval, very often reniform or 

 rounded-triangular; one-half to two-thirds or seldom almost as broad as long; slightly 

 compressed; no lamellte; with an oblong cavity, or a longitudinal slit on the narrow side. 

 Length IS/i- 



Lechia thymifolia Michx. (Cistacece.) Dry seed. — Grains rounded-oval to elliptical, often broadly 

 triangidar or almost reniform, two-fifths to almost as broad as long; the broader ones slightly 

 compressed; no lamellae; usually vdth a longitudinal slit which appears narrower, but more 

 marked when seen from the narrow side. Length 12/li, rarelj' 20/j. 



Bixa orellana Linn. {Bixacece.) Dry unripe seeds. — Grains rounded-oval to elliptical, sometimes 

 blunt-triangular and almost reniform; the long ones two-fifths to one-half as broad as long, 

 and the shorter ones as broad as long; the broader ones compressed about two-thirds of their 

 width; few delicate or no lamellce; with a long slit-like cavity which is more or less distinct 

 in both aspects; or with a narrow slit and short transverse fissures seen only from the narrow 

 side. Length 30 and 36ai. 



Mangifera species (jirobably M. indica) Linn. {Anacardiaccce.) Dry cotyledons. — Grains oval to 

 oblong, sometimes blunt-triangular, rarely almost reniform; two-fifths to as broad as long; 

 the broad ones compressed; no lamellae; often with a slit-like cavity which is usually more 

 distinct in the narrow aspect, and from which frequently very delicate cross-fissures radiate. 

 Length 30;u. Some doublets among them. 



Anacardium occidentale Linn. (Anacardiacw.) Dry cotyledons. — Grains spherical or ellipsoidal, often 

 on one margin curved or even plano-convex; two-thirds to as broad as long; the widest ones 

 slightly compressed; no lamella?; the spherical grains have a small central cavity, and the 

 oval ones an indistinct longitudinal slit. Length 10^. Among them compound grains of 2 

 to 3 part-grains. 



Lotus edulis Linn.; Krokeria edulis. {LeguminoscR.) Dry cotyledons. — Grains spherical-oval or reni- 

 form; three-fifths to almost as broad as long; the broad ones compressed, the narrower ones 

 slightly compressed, few delicate, sometimes indistinct lamellae; a delicate longitudinal slit 

 with very indistinct radial fissures in the broad aspect; the slit as well as the radial fissures 

 are more marked in the narrow aspect. Length 45/i. 



Caragana altagana Poir. (Legiinnnosw.) Dry cotyledons. — Grains rounded or oval; three-fourths to 

 equally as liroad as long; slightly compressed; occasionally with a longitudinal slit on the 

 narrow side. Length S/i. 



Caragana arborescens Lam. (Lcgmninosce.) Dry cotyledons. — Grains rounded or oval; three-fifths 

 to almost as broad as long; slightly compressed; with indistinct cavity seen on the broad 

 aspect; on the narrow side a distinct longitudinal slit. Size 8 to lO^u. 



Cicer arietinum Linn. (Leguminosce.) Fresh and dry cotyledons. — Grains almost spherical to ellipti- 

 cal; twice as long as thick; with few, very indistinct lamellae and an oval or oblong hilum; 

 dry, with a longitudinal slit and delicate radial fissures. Length 30n, thickness 23;u. Among 

 them compound grains of few equal-sized part-grains (see type 14). 



Pisiini sativum Linn. {Leguminosce.) Dry cotyledons. — Grains oval to almost reniform, and blunt- 

 triangular; half to almost as broad as long; the broad ones compressed. Lamellae distinct, 

 usually 5 to 7; an indistinct cavity with delicate radial fissures is seen on the broad side; a 

 marked longitudinal slit on the narrow side. Length 65/u. A few doublets are found among 

 them. 



Ervum lens Linn. {Leguminosce.) Fresh and dry cotyledons. — Grains oval to triangular with rounded 

 corners; half to almost as thick as long; with 2 to 3 lamellae; and ovate or oblong hilum; dry, 

 with delicate radial fissures in the broad aspect, and with a distinct slit in the narrow aspect, 

 but rarely ^vith cross-fissures. Length 40/u, width 30/ii. According to Payen, the length is 

 67ai. Doublets with equal parts are often found among them (type 14). 



