EEPORT OP THE BOTANICAL EXCHANGE CLUB. 377 



had found its way into Mons. Gay's herbarium. In this the name 

 palmtris was altered by Mons. Gay io poly carpa, IN'olte. In 1873 I 

 ao-ain visited Orkney, and determined to satisfy myself about the 

 Zannichellia. Unfortunately, however, the season was a wet one, and 

 I did not reach Orkney before August, by which time the loch had 

 far surpassed its summer level, and no trace of the growing Zanni- 

 chellia was to be seen. A. few battered fragments 1 picked up on the 

 shore, and a few fresh specimens were procured for me by my nephew, 

 Mr. William Fortescue, by throwing in a small anchor with a line to 

 the place where the Zannichellia ought to grow, and then dragging it 

 to shore. The fruit was not quite ripe, and in this state was connivent. 

 The specimens quite agree with Scandinavian specimens named 

 Z. pohjcarpa received from Dr. Ahlberg of Stockholm. In 1874 my 

 nephew dried a large number of specimens, which have been sent out 

 to the members of the Club. In some of these the nuts are immature, 

 and the style appears longer than it does when the nut has attained 

 its full size. In others the fruits, though mature, have become 

 divaricate, but I am not sure whether this has not been produced in 

 the process of drying. I see that Koch in his ' Synopsis Fl. Germ, 

 et Helv.' makes no mention of the carpels being connivent ; so possi- 

 bly this character is not constant. Z. pohjcarpa can at the best be 

 considered but a subspecies, and, indeed, presents no more claim to dis- 

 tinction than Z. peclicellata. Fries." — J. T. Boswell. 



Alisma natans. " Canal between Nottingham and Charlton Bridge, 

 north of Charlton, Cheshire." — F. M. Webb and J". L. AVaeken. 



Orchis laxiflora. " On ballast at Hartlepool, several plants occur- 

 ring along with Cynosurus echi7iatiis, Bronius maximiis, and other 

 Sarnian species : near it one fine plant of Scolymus hispanicus—a 

 strange species to be found in such a spot, but on the other parts of 

 the hills Orchis pyramiclalis is quite at home, occurring every year " — 

 F. Arnold Lees, 1873. '' The specimen sent to me by Dr. Lees is 0. 

 palustris, Jacq. Of course such a casual as that would not need men- 

 tion, were it not that a similar plant is said to have been found in 

 Guernsey in 1872, by Dr. F. Arnold Lees. (See ' Journ. Bot.,' 1873, 

 p. 209.) The editor of the ' Journal of Botany ' says that ' they are 

 intermediate in their characters between typical 0. palustris, Jacq., 

 and 0. laxiflora, and are one of a chain of plants which connect the 

 two, and which can therefore scarcely be separated even as varieties.' 

 In this paper by Dr. Lees, he says, " I sent specimens of the Guernsey 

 plant to Dr. Syme for the Botanical Exchange Club, having previously 

 distributed examples to various other botanists. Dr. Syme identifies 

 my plant with Orchis palustris, Jacq.' T^ow Guernsey here is a mis- 

 print, or a slip of the pen, for Hartlepool, for the only Orchis which Dr. 

 Lees sent, was a single specimen from Hirtlepool on ballast. In 1853 

 in both Guernsey and Jersey I saw hundreds of specimens of 0. laxi- 

 flora, but not one approaching 0. palustris, though I specially looked 

 for it. ]S^either have I seen from any other collector any specimens 

 that could be called palustrisy—Z. T. Boswell. 



Spiranthes mstivalis, Rich. " Between Lindhurst and Christchurch, 

 Hants, August, 1874. Specimens are sent to show the plant not 

 extinct as has been reported. Still rare there : about twenty-five 

 plants seen in about three-quarters of an hour's search over the bog. 



