distributor’s retort for 1952 
in 
Pohjgonuin df-'qiiale Ijiiidm.? ("1\ ■”). H, S. WiUsliire; diuii|) 
grouiul ut'ai- Poulsliot, September 7tli 1952 (Ref. No. 6242). As with 
No. 6246, some fruits are shining. It appears to be an intei'inediate 
between P. aequale and culcatum.. — J. D. Grose. “4’he nuts, with two 
eoncave and one eonvex I'ace, are characteristic of P. aequale, but otlier- 
wise it is very like' P. calcatuuh. It is possible that these specimens aie 
of the undescribed hj'bi iil aequale Xca lea t u in which Moss (1914, Camh. 
Hilt. PL, 1, 122-127) says occurs in three or four llritish counties.” 
D. W. JOWETT. 
Poliigunuiih calcatuiii Lindm. 8, S. Wiltshire; Poulshot, September 
7th 1952 (Ref. No. 6246). Fruit 2 mm., dull or shining, often exserted, 
sometimes with one face reduced to a groove. — J. P. Grose. ‘‘It is P. 
ealcatuin. The material is very similar to some I obtained from Arthur’s 
Seat in 1951. I do not know why it is usual for most floras to (piote 
Arthur’s Seat as the only locality for this species. I have seen material 
from vice-counties 12, 17 and 16 which I am satisfied is P. cal rat uni. 
Including the pre.sent gathering I thus have a record of IL calcatuiii in 
four, adjacent, southern vice-counties.”— D. W. Jowett. 
Qiiercus pet raea (Mattuschka) Liebl. 1, W. Cornwall; Lambriggan, 
Perranzabuloe, August 13th 1952. With sessile acorns. — F. Rij.stone. 
(piercus petraea (Mattuschka) Liebl. 1, W. Cornwall; Lambriggan, 
Perranzabuloe, August 16th 1952. With acorns slightly stalked.— F. 
Riestone. ‘‘ Quite common.” — E. F. W.\rburg. 
Sallx .P alba. L. var. vitellina (L.) Stokes x fragilis L. sec. Smith 
(Kiig. Hot.), d- 28, W. Norfolk; disused willow-carr, Reffley Marshes, 
King’s Lynn, April 21st and September 27th 19.50 (Ref. No. 2156). 
Twigs vei'y brittle, yellowish or salmon-coloured with a shining, polished 
surface — darker coloured in the female. These dry black, especially the 
year-old fertile twigs. Leaves very long and narrow. Catkins very 
long (to 7 cm.), curved, narrow and tapering, whereas the catkins of 
iS. fragilis average about 5 cm. The catkin-scales of S. fragilis show 
three veins prominent under the hand-lens and these are absent in this 
j)lant. Stamens variable in number, (2-) 6-4, haii-y and connate at the 
base. Pollen-grains somewhat irregular in size. This carr also contains 
the following Salix species and hybrids; — S. viininalis L., S. triandra 
L., S. Pusselliana Sm., S. fragilis L. sec. Sm., and 8. triandra x S. 
rimimalis. — E. L. Swann. ‘‘The parentage suggested is probably cor- 
rect; the whole fragilis complex is in urgent need of revision.” — R. ]). 
Meikdb. 
Salix ? alba L. var. vitellina (L.) Stokes X fragilis L. sec. Smith 
(Eng. Hot.), 9- 28, W. Norfolk; in old disused willow-carr, Reffley 
Marshes, King’s Lynn, April 21st and September 27th 1950 (Ref. No. 
1743). — E. L. Swann. ‘‘See remarks under male specimens. These 
