189 
Peramium pubescens (L.) (Goodyera pubescens, R. Br.). Testa 
elongated, tapering towards apex, about ten times longer than 
thick, averaging 0.91 X 0.084 mm. Cells regular, elongated, 
about eight and a half times longer than broad, averaging 0.121 X 
0.014.mm. (Plate CLL, fig. 15.) 
11. Eprpactis, Hoff. 
Epipactis viridiflora (Hoff.) Reich. (£. Helleborine, var. viridens, 
A. Gray). Testa elongated, somewhat fusiform, about five times 
longer than thick, averaging 1.31 < 0.261 mm. Cells polygonal, 
becoming hexagonal towards base, about twice as long as broad, 
averaging 0.048 X 0.018 mm. (Plate CLI, figs. 16 and 16a.) 
12. ARETHUSA, L. 
Arethusa bulbosa, L. Testa oblong, less than twice as long as 
thick, averaging 0.45 X 0.243 mm. Cells oblong to square, 
smaller towards base, over twice as long as wide, averaging 
0.0425 X 0.0171 mm. (Plates CLI. CLII., figs. 17a and 17.) 
13. LimoporuM, L. 
Limodorum tuberosum, L. (Calopogon pulchellus, R. Br.) Testa 
oblong, tapering at apex and base, about three times as long as 
thick, averaging 0.723 X 0.207 mm. Cells regular, oblong, about 
two and a half times as long as wide, averaging 0.033 X 0.014 
mm. (Plate CLIL., fig. 18.) 
14. PoGonta, Juss. 
Pogonia ophioglossoides (L.) Ker. Testa oblong, tapering at 
apex, ribbed by longitudinal bands that branch at base and apex, 
about seven times as long as thick, averaging 1.23 X 0.183 mm. 
Cells oblong, hexagonal, about three times longer than wide, 
averaging 0.0946 X 0.0298 mm. Inner cell wall banded by deli- 
cate lines that usually fade out above nucellus. (Plate CLIL., figs. 
19, 19 a.) 
Pogonia trianthophorus (Sw.) B. S. P.(Pogonia pendula, Lindl.) 
Testa oblong, about as long as thick, averaging 0.570 X 0.197 
mm. Cells oblong or polygonal, about two and a half times 
longer than wide, averaging 0.0525 0.0226 mm. Inner cell wall 
banded with branching, irregular, sub-distant lines. A variable 
form, sometimes longer and narrower, or with inflated summit and 
contracted base, having little in common with the seeds of the 
species of Eupogonia. (Plate CLIL., figs. 20, 20 a.) 
