GENUS LIUTJM. 



495 



Differentiation of Certain Starches of the Genus Ldlium. Continued. 



Histological Chauacteristics. Cont inued. 

 Conspicuous Forms. Coutinueil. 



L. titfrinum var. splendens: Same as in L. carululum, ex- 

 cept more irregular, more rod-sliajied (curved or 

 bent) and club-shaped. The triangular forms are 

 narrower, and there are fewer ovoid grains. 



L. hcnri/i: Same as in L. camlidum, exec])( more irregular 

 and fewer ovoid grains. 



L. (inralum: Same as in L. camlidum, except more irreg- 

 ular and more narrow triangular and pyriforni 

 grains, and not quite so many ovoid forms. 



L. speciosum var. album: Same ;is in L. cnudidum, except 

 more broad and narrow triangular grains and 

 irregular elliptical grains, and fewer ovoid. 



L. marlagon: Same as in L. caiididum, except more irreg- 

 ular and more irregular elliptical, bottle-shaped, 

 and rod-shaped, either straight or curved, and fewer 

 ovoid. 



L. superbum: Same as in L. candidum, except fewer ellip- 

 tical grains. 



L. lenuifolium: Same as in L. candidum, except more irreg- 

 ular and more irregularly elliptical and triangular 

 and fewer ovoid. 



L. pardalinum: Same as in L. candidum, except somewhat 

 irregular and more pjTiform, clam-shell-shaped, 

 and curved or straight rod-shaped grains, and fewer 

 ovoid grains. 



L. puberulum: Same as in L. candidum, except often very 

 irregular, may be double, and more rod-shaped 

 grains, fev.'er ovoid and triangular. 



Hilum Form, Number, and Position. 



L. candidum: Form single, small, not very distinct round 

 spot, often fissured, fissure very short, narrow, 

 clean-cut, and transverse. Position 0.2 to 0.11 of 

 longitudinal axis, usually 0.11. 



L. longiftorum var. giganteum: Form same as in L. candi- 

 dum, hut sometimes a cavity and less often fissured. 

 Position 0.1(5 to 0.11 of longitudinal axis, usually 

 0.16. 



L. hmgiflorum var. eximium: Form same as in L. can- 

 didum, but rarely if ever a cavity. Position 0.16 

 to O.li of longitudinal axis, usually 0.16. 



L. parryi: Form same as in L. candidum, but more dis- 

 tinct, usually a cavity, not often fissured. Posi- 

 tion 0.25 to 0.14 of longitudinal axis, usually 0.2. 



L. rubellum: Form same a.s in L. candidum, but more dis- 

 tinct. Position eccentric 0.2 to 0.2.5 of longitudinal 

 axis, usually 0.16. 



L. philadclphicum: Form same as in L. candidum, but 

 more distinct, always a cavity, often fissured. 

 Position eccentric 0.25 to 0.16 of longitudinal axis, 

 usually 0.20. 



L. ligrinum var. splendens: Form same as in L. candidum, 

 but less often fissured. Position eccentric from 

 0.20 to 0.16 of longitudinal axis, usually 0.16. 



L. henryi: Form same as in L. camlidum, but more dis- 

 tinct, sometimes a number of irregular fissures. 

 Position 0.20 to 0.11 of longitudinal axis, usually 

 0.20. 



L. auratum: Form same as in L. candidum. Position 

 eccentric 0.20 to 0.16 of longitudinal axis, usually 

 0.20. 



L. speciosum var. album: Form same as in L. candidum, 

 but more distinct. Position eccentric 0.20 to 0.14 

 of longitudinal axis, usually 0.16. 



L. marlngnn: Form same as in L. candidum, but fairly 

 distinct. Position eccentric 0.20 to 0.10 of longi- 

 tudinal axis, usually 0.10. 



L. superbuyn: Form same a-s in L. carulidum, but fairly 

 distinct and sometimes oval in shape. Position 

 eccentric 0.25 to 0.16 of loiiKitudinal axis, u.sually 

 0.2. 



Histological Characteuistics. Continued. 

 Hilum Form, Number, and Position. Continued. 



L. tenuifolium: Same as in L. candidum, but more dis- 

 tinct and rarely fissured. Position eccentric 0.25 

 to 0.16 of longitudinal axis, usually 0.2. 



L. pardalinum: Same as in L. candidum, but fairly dis- 

 tinct and sometimes more than one fissure. Posi- 

 tion eccentric 0.2 to 0.10 of longitudinal axis, 

 usually 0.14. 



L. puberulmn: Same as in L. candidum, but sometimes 2 

 or even 3 hila in one grain; usually fissured by sev- 

 eral deep fissures radiating from a central cavity or 

 by a single, short, straight, transverse line. Posi- 

 tion eccentric 0.16 to 0.10 of longitudinal axis, usu- 

 ally 0.14. 



LamelloE General Characteristics and Number. 



L. candidum: Fairly distinct, comparatively fine eUipses, 

 rings, or arcs of circles, continuous and discontinu- 

 ous, usually regular. 34 to 35 on larger grains. 



L.longiflorumvax. giganteum: Same asin L. carulidum. 35 

 to 40 on larger grains. 



L.longiflorum^ax. eximium: iiame as in L. candidum. 36 

 to 38 on larger grains. 



L. parryi: Same as in L. candidum, but not so distinct, 

 sometimes 2 sets of lamellis. 25 to 30 on larger 

 grains. 



L. rubellum: Same as in L. candidum, but slightly more 

 distinct, rarely 2 sets of lamella;. 26 to 30 on larger 

 grains. 



L. philadelphicum: Same as in L. candidum, but not so 

 distinct and usually regular. Sometimes 2 or 3 sets 

 whose longitudinal axis differs from that of the rest 

 of grain. 15 to 20 on larger grains. 



L. tigrinum var. splendens: Same as in L. candidum., but 

 not so distinct, more irregular, sometimes small sets 

 of 2 or 3 whose axes difl'er from that of rest of the 

 grain. About 30 on larger grains. 



L. henryi: Same as in L. candidum, but more distinct, not 

 so fine, more irregular, and sometimes 2 or 3 small 

 sets added to original grain. 30 to 35 on larger 

 grains. 



L. auratum: Same as in L. candidum, but not so distinct. 

 Probably about 30 on larger grains. 



L. speciosum var. album: Same as in L. candidum, but 

 more distinct and sometimes 2 sets whose longi- 

 tudinal axes do not coincide with the longitudinal 

 axis of the grain. 42 to 44 on larger grains. 



L. martagon: Same as in L. candidum, but more distinct, 

 more irregular, and are continuous at the margin. 

 Sometimes 1 or 2 additional sets. 15 to 20 on 

 larger grains. 



L. superbum: Same as in L. candidum, but not so distinct, 



1 or 2 additional sets of lamellae. Number not de- 

 termined. 



L. tenuifolium: Same as in L. candidum, but not so dis- 

 tinct. About 20 to 25 on larger grains. 



L. pardalinum: Same as in L. candidum, but sometimes 

 continuous around the margin. 30 to 35 on larger 

 grains. 



L. puberulum: Same as in L. candidum, but somewhat 

 more distinct, more irregular, and may have 1 or 



2 smaller sets added to main set. About 36 on 

 larger gn'ains. 



Size. 



L. candidum: From S to 70/j, commonly 40/a. 



L. longiflorum var. giganteum: From S to 70;^, commonly 



"40m. 

 L. longiflorum var. eximium: From 5 to 72;u, commonly 



46m. 

 L. parryi: From 4 to 60m, commonly 32m. 

 L. rubellum: From 4 to 64m, commonly 38m. 



