Collection

Illustration

Sporangium Description

NPA-PB-201602

Figure 2(A)

One isolated empty sporangium with a vertical annulus (ca. 19 annulus cells), well visible stomium, and the annulus is interrupted by the remnant stalk at the base of the sporangium.

NPA-PB-201603

Figure 2(B)

One isolated sporangium with a vertical annulus (ca. 15 annulus cells), well visible stomium, and the annulus is interrupted by the remnant stalk at the base of the sporangium.

NPA-PB-201727

Figure 2(C)

One isolated empty sporangium with a vertical annulus (ca. 13 annulus cells), well visible stomium, and the annulus is interrupted by a remnant stalk (three rows) at the base of the sporangium.

NPA-PB-XFY01

Figure 2(D)

One isolated empty sporangium with a vertical annulus (ca. 13 annulus cells), well visible stomium, and the annulus is interrupted by a remnant stalk (two rows) at the base of the sporangium.

NPA-PB-XFY04

Figure 2(E)

One isolated empty sporangium with a vertical annulus (ca. 13 annulus cells), well visible stomium, and the annulus is interrupted by a remnant stalk (two rows) at the base of the the sporangium

NPA-PB-XFY05

Figure 2(F)

One isolated sporangium with two visible spores, vertical annulus (ca. 14 annulus cells), well visible stomium, a few acicular hairs projecting from the sporangium wall, and the annulus is interrupted by a remnant stalk (two rows) at the base of the sporangium.

NPA-PB-201719

Figure 3(A) and Figure 3(B)

Two isolated sporangia with oblique annuli (ca. 21 - 24 annulus cells) and well visible stomium.

NPA-PB-201813

Figure 3(C) and Figure 3(D) and Figure 3(E)

Three isolated sporangia with oblique annuli from exindusiate sori, and vaguely visible spores.

NPA-PB-201712

Figure 3(F) and Figure 3(G)

Two isolated sporangia with oblique annuli (ca. 20 indurated cells) and

vaguely visible stomium.

NPA-PB-YN17

Figure 3(H)

One isolated sporangium with oblique and complete annulus, and the annulus is passing its stalk.

NPA-PB-201738

Figure 4(A) and Figure 4(B) Figure 4(C)

Modified laminas with two rows of naked and dehisced sporangia, the sporangia with complete apical annuli containing trilete spores which show some reticulate ridges.

NPA-PB-201814

Figure 4(D)

Naked sporangia with complete subapical annuli borne on strongly modified lamina.

NPA-PB-201718

Figure 4(E)

Naked and dehisced sporangia with complete apical annuli borne on modified lamina.