EXTRACTS AND ABSTRACTS. 59 
nodulosa, Del. Halocnemum nodulosum, Kostel. Halostachys 
perfoliata, Moq.-Tand. (part). (S.W. Europe, N. Africa.) 
H. perfoliata, Bunge. Salicornia perfoliata, Forsk. Halocnemum 
a.) 
H. ? patagonica, Moq.-Tand. en) 
H. Ritteriana, U. St. eecpeieain Ritt., Mog.-Tand. (S. 
. A. Meyer. 
spica, C. A. Meyer. Salicornia casp., Pall. Anthrocnemum 
easp., Wog.-Tand. (Caspian, Siberia, Persia, &c.) 
oc 
dds strobilaceum, Marsh, Bieb, Salicornia strob., Pall. S. 
ciata, Forsk, (S.E. Europe, Siberia, Persia,. N. Africa.) _ 
No Salicorniea is known as yet from the Asiatic shore of the Pacific 
Oce an. 
Tue Potten oF ConIFERR. 
= the recently published * Sag del Congresso Internazionale 
Botanico tenuto in Firenze,” will be found an interesting paper by M. 
Tehistiakoff on Coniferous pollen, alathate? by two plates. Whether 
the grains be spins of or eT —_ an air- pent in both 
At each point where an air-chamber is destined to appear is seen an 
interspace between the two layers of the extine, filled with a small 
quantity of a gelatinous hygrosc opic substance. By expansion of the 
elastic outer extine-layer the interspaces are converted into vesicles ; 
these are seen to be filled with a watery fluid which soon disappears, 
and the air-chamber is complete. Meanwhile the several-layered 
f é ; 
e 
a becomes page as a new primo utricle, composed some- 
mes of a den g, prismatic, pavement-like plasma (of a 
Graber of oye in fact), which is very well seen in Sequoia, 
Cryptomeria, and Peewee “ogee: but in other cases the prismatic 
structure is less pronounced, or Sag only locally on the circum- 
ference of the uncrystallised plasm 
The singular phenomenon of avin of the plasma occurs oithene 
at the same time as or after the appearance of this od erate 
i that the parti 
