74 
Trmisadipns of the Royal Society of South Africa. 
Table 2. 
Carpel or carpels. 
Bract .... 
Outermost of 3 ovular 
envelopes 
Outer of 2 ovular i 
envelopes 
Innermost ovular en- 
velope of $ flower 
Single ovular envelope 
of J flower 
Completely aborted 
ovuliferous scale 
Number of 
carpels. 
2 or 4 
2 or 4 
Genus. 
Welwitscliia $ 
Gnetum (complete ? ) 
/'Ephedra ? 
) Gnetum (incomplete 
/ 
C Welwitschia ? 
C Ephedra 
< Gnetum 
C Welwitschia 
Welwitschia 
Ephedra $ 
Gnetum ? 
Welwitschia ^ & $ 
Author. 
Pearson, 1909 ; Sykes, 
1910. 
Blume, 1834 ; Strasbur- 
ger, 1872.* 
Blume, 1834 ; Van 
Tieghem, 1869, 1891 ; 
Strasburger, 1872.* 
Beccari, 1877 ; Lignier, 
1908 ; Lignier and 
Tison, 1911 B, 1912. 
Strasburger, 1872 f ; 
Macnab, 1873 ; Lig- 
nier, 1908 ; Lignier 
and Tison, 1911,1912. 
Lignier, 1903. 
Table 3. 
Whorl. 
Type {6). 
Welwi 
(cJ) 
bschia. 
(9) 
Ephedra, 
Gnetum 
(cJ). 
Ephedra 
(?). 
Qnetu 
Complete. 
m($). 
Incom- 
plete. 
1 
" Ovaire 
ferme," 
with style 
and stigma. 
Ovule fertile 
2-4-carpel- 
lary ovary, 
with style 
and stigma. 
Ovule sterile 
2-4-carpel- 
lary ovary, 
without 
stigma. 
Ovule fertile 
No trace 
3-2-car- 
pellary 
ovary, 
without 
stigma 
Ovary 
without 
stigma 
Ovary 
without 
stigma. 
2 
Androecium 
Androecium 
Winged 
envelope 
No trace 
Androe- 
cium 
Enve- 
lope 
Enve- 
lope X 
Ar- 
rested.J 
3 
2-membered 
perianth 
2-membered 
perianth 
2-mem- 
bered 
perianth 
No trace 
Peri- 
anth 
Peri- 
anth. 
No 
trace. J 
4 
2-membered 
perianth 
2membered 
perianth 
Very rarely 
present. § 
Otherwise 
1-2 pairs 
of reduced 
traces in axis 
No trace 
No trace 
No 
trace % 
Column 
1 
2 
3 
4 
5 
6 
7 
* strasburger abandoned these opinions later, and regarded the envelopes con- 
cerned as integuments (Strasburger, 1879, p. 96). Incidentally Strasburger {loc. cit., 
p. 133) states that "die auf das ovulum reducirten weiblichen Bliithen der Gnetaceen 
scheinen mir nicht mit den miinnlichen Bliithen dieser Pflanzen vergleichbar zu sein" 
(c/. Pearson, 1915, C). 
t In 1879 Strasburger (p. 133) abandons this view also, and speaks of the remark- 
able stigma-like expansion of the free edge of this envelope as " eine Anpassung des 
Integumentrandes an den Tnsectbesuch." 
X These views are now abandoned by the authors. See Table 1 and Lignier and 
Tison, 1913. 
§ Vide Lignier and Tison, 1912, p. 130, fig. 24. 
