Titlebook: Spores of the Pteridophyta; Surface, Wall Struct Alice F. Tryon,Bernard Lugardon Book 1991 Springer-Verlag New York Inc. 1991 Pteridophyta.

领带

, Link,n an unopened spore. The three-layered exospore forms the largest part of the sporoderm and the papillate contours, and is structurally very similar to that of the Ophioglossaceae. An usually thin, inconspicuous perispore conforms to the exospore. The pseudoendospore and a well-developed endospore,

demote

, Kaulfuss,ca and adjacent islands. The spores are mostly large and trilete except for the monolete ones of .. The two-layered, blechnoid exospore forms the largest part of the sporoderm and usually the surface contours. A perispore of one to three layers usually conforms to the exospore but may form a more co

令人苦恼

, Reichenbach,n & Tryon, 1982). Many genera are widely distributed on all continents, and several are local endemics. The spores are tetrahedral-globose to globose, and with rare exception, trilete. The exospore is two-layered. The usually thin perispore often includes rodlets, and is generally more elaborate tha

pessimism

, (Presl) Ching,idely distributed in both regions. The spores are mostly trilete but are either tri- or monolete in . and .. The sporoderm consists of a blechnoid type of exospore and a thin perispore of one or two layers, usually plain or papillate with globules or rodlets.

elucidate

完成才能战胜

, Bower,ly strongly depressed between the angles. The two-layered exospore has a plain surface. The perispore consists of two layers—an inner one that forms the coarse, tuberculate contours, and an outer one with some rodlets.

motivate

复习

Jingoism

intelligible