CRINUM. 



471 



of 2 or 3 fairly coarse lamellas located about the middle 

 or nearer the distal margin, as is noted in C. zeylanicum, 

 but not in C. longifolium. With the exception of the 

 region directly around the hilum, the lamellae are slightly 

 more distinct for one-third to two-thirds distalward 

 from the hilum than in C. zeylanicum, but less clear than 

 in C. longifolium. The refractive distal band is slightly 

 more brilliant and found on a larger number of grains 

 than in C. zeylanicum, but not in quite so large a pro- 

 portion as in C. longifolium. The component lamellae 

 of the lustrous band are less often discernible than in 

 C. zeylanicum, but more often than in C. longifolium. 

 This band, even in grains of similar shape to those of 

 C. zeylanicum, frequently forms a border around the 

 entire grain. This latter peculiarity is rarely observed 

 in C. zeylanicum, but is seen in a majority of the grains in 

 C. longifolium. A secondary set of lamellae placed at 

 varying angles to the primary set is rare, yet it is present 

 more frequently than in either parent. The border 

 of lamellas around the grain may represent a secondary 

 set of lamellas. The number of lamellae in the primary 

 set of the larger grains varies from 48 to 52, but in such 

 grains they were not discernible over the entire surface. 

 The number is about the same as in C. zeylanicum, and 

 distinctly greater than in C. longifolium. 



The size of the grains varies from the smaller, which 

 are 8 by 6/x, to the larger elongated grains, which are 

 70 by 52/x, in length and breadth. The common size of 

 the elongated grains is about 56 by 40/A. There are a 

 number of broadened grains in this species which are rare 

 in C. zeylanicum, but commonly present in C. longi- 

 folium. The larger broadened grains of this hybrid are 

 58 by 70/i. The common size is 36 by 44/t. In common 

 size the grains are closer to C. zeylanicum than to C. 

 longifolium, but in some respects the opposite. 



POLARISCOPIC PROPEBTIES. 



The figure is slightly eccentric to quite eccentric. Its 

 position is much less varied than in C. zeylanicum. The 

 average eccentricity is less than in C. zeylanicum, but 

 slightly more than in C. longifolium. The lines vary 

 from moderately fine to coarse, the average being some- 

 what coarser than in C. zeylanicum, but not so coarse as 

 in C. longifolium. The lines usually intersect obliquely, 

 and are straight in the majority of the figures, but they 

 are more often bent and bisected than in C. zeylanicum, 

 yet not so frequently as in C. longifolium. They are 

 rarely so arranged as to form a mesial line with bisected 

 ends, which figure was riot observed in C. zeylanicum, but 

 more often found in C. longifolium than in the hybrid. 

 Generally, in the characters of the polariscopic figures, 

 the hybrid is more closely related to C. zeylanicum. 



The degree of polarization is very high, slightly higher 

 than in C. zeylanicum and distinctly higher than in C. 

 longifolium, but much closer to C. zeylanicum (value 

 95). Polarization varies in the different grains from 

 high to extremely high, with the majority very high. 

 The range of variation is the same as in C. zeylanicum, 

 but not so great as in C. longifolium. Variations in the 

 same aspect of a given grain are slightly greater than in 

 C. zeylanicum, but not nearly so marked as in C. 

 longifolium. 



With selenite the quadrants are usually well defined, 

 but not in quite so many grains as in C. zeylanicum, yet 



in many more than in C. longifolium. They are unequal 

 in size and slightly irregular in shape, somewhat more 

 irregular than in C. zeylanicum, but not nearly so irregu- 

 lar as in C. longifolium. The colors are pure in the 

 majority of the grains, an impurity due to a greenish 

 tinge is greater than in C. zeylanicum and very much 

 greater than in C. longifolium, being closer to C. 

 zeylanicum. 



IODINE REACTIONS. 



With 0.25 per cent Lugol's solution the grains color 

 a light to moderate blue- violet (value 38), which is 

 somewhat deeper and more blue, and deepens a little more 

 rapidly, than in C. zeylanicum, but with about the same 

 variation in depth in the different grains. The color 

 is lighter than the average, it deepens less rapidly, and 

 there is less variation in depth in the different grains, 

 than in 0. longifolium. With 0.125 per cent Lugol's 

 solution the grains color a very light blue-violet which 

 deepens rapidly and is a little more blue, but of about the 

 same depth and variability of color in different grains, 

 as in C. zeylanicum ; but not so deep as the average, and 

 with less variation, than in 0. longifolium. After heat- 

 ing in water until the grains are gelatinized and then add- 

 ing 2 per cent Lugol's solution most of the grains color 

 a moderately light blue, and a very few a moderately deep 

 blue. The average is slightly lighter than in G. zeylani- 

 cum, but a little deeper and with less variation than in 

 C. longifolium. If the preparation is boiled for 2 min- 

 utes, and then treated with an excess of 2 per cent Lugol's 

 solution, most of the grain-residues become a moderately 

 light blue, a few a moderately deep blue, and a few with 

 reddish tint, about the same as in C. zeylanicum, but a 

 little deeper than in C. longifolium. The capsules are 

 colored a deep heliotrope to a wine-red. The average 

 coloration of the capsules is slightly deeper and a little 

 less reddish than in C. zeylanicum, and considerably 

 deeper and less reddish than in G. longifolium. The 

 reactions are on the whole closer to C. zeylanicum than 

 to C. longifolium. 



ANILINE REACTIONS. 



With gentian violet the grains color fairly at once, 

 about the same as in C. zeylanicum, but the same as in 

 C. longifolium. In half an hour the color is moderate 

 (value 60), with a less number of grains of the latter 

 color than in C. zeylanicum, hence the average depth of 

 coloration is lighter than in this species (value 60). 

 A band of deep color at the distal margin is sometimes 

 found on the less-colored grains, but the contrast between 

 this band and the body of the grain is not so marked as in 

 C. zeylanicum, but more so than in C. longifolium. In 

 some grains, notably the low triangular and ellipsoidal 

 with a refractive border around entire grain, the body 

 of the grain tends to color more deeply than the border, 

 which was rarely noted in C. zeylanicum, but commonly 

 in C. longifolium. The reaction is, on the whole, closer 

 to that of G. longifolium. 



With safranin the grains react lightly at once, but 

 somewhat deeper than in the parents; and in half an 

 hour the color is moderately deep to deep but deeper 

 than in either parent (value 70). The same variations 

 in depth of color in different parts of a given grain are 

 found as was noted under gentian violet. The contrast 

 in depth of color in different parts of the same grain, 



