THE MARYLAND CYCADS. 447 



17 cm. long, 6 cm. wide, and 4 cm. thick, somewhat resembling W. C, B., 

 No. 3347, but with the abnormal features of that specimen exaggerated. 

 (Locality: PI. LXXX, No. 106.) 



PI. LXXXIX, Fig. in, 11 is a view of the R. T. Donaldson fragment. 

 No. 12, M. G. S.-W. C, B., No. 9056, a very small fragment of the type 

 of W. C, B., No. 1470. It is 7 cm. long, 6 cm. wide, and 3 cm. thick. 

 (Locality: PL LXXX, No. 106.) 



PL XCV is a view from above of the Turner trunk, W. C, B., No. 

 3046, showing the deep partitioned cavity ("crow's nest") at the summit, 

 which constituted the "chicken trough." This is one of the principal 

 tj'-pes of C. Fontaineana. It is a practically complete trunk of low 

 stature and narrow ovate cross section, much wider above than below, 

 with the whole upper part hollowed out deeply, so that it was used by 

 its owner as a chicken trough. The rapid diminution downward gives 

 it somewhat the shape of a boat. There is also a hollow depression at 

 the base, but of much smaller size than that of the summit. It is of a 

 dull-brown color, lighter in places, or shading to reddish rust color. It 

 is well silicified and moderately hard. The maximum height is 20 cm., 

 but the lowest side is only 16 cm. The long diameter is 32 cm. and the 

 short one 17 cm. at the largest part. At the base these measurements 

 are reduced to 28 cm. and 12 cm., respectively. The average girth is 

 80 cm. The cavity at the summit is 9 cm. deep, with an irregular bottom 

 showing small openings several centimeters deep. It is 19 cm. long and 

 12 cm. wide. The hollow at the base is 3 cm. deep, 17 cm. long, and 8 cm. 

 wide. The cortex rounds in at the summit, and the organs of the armor 

 are here massed together. There may have been some vertical pressure. 

 (Locality: PL LXXX, No. 93.) 



PL XCVI shows in great detail the polished section of the Griffith 

 trunk, W. C, B., No. 1467, that was cut through the center of the terminal 

 bud and short axis, exposing the internal organs and tissues. This was 

 the original type of the species, and the general form, the characters of 

 the exterior, the setting of the terminal bud, etc., are shown in Fig. 3 of 

 PL XCVII and in the still further reduced group figures above enumerated. 



The specimen consists of considerably over half of a small trunk 

 which is low and squat, as if greatly compressed vertically. The upper 

 portion is entire and elliptical in outline. The longer diameter is 28 cm. 



