212 YORKSHIRE NATURALISTS’ UNION AT ROKEBY. 
make this a peculiarly happy hunting-ground for the botanist, and if 
no great number of rare flowers was observed, this must by no means 
be put down to the poverty of the district, but rather to the very 
- limited time which was at the disposal of the searchers. Indeed, the 
very richness and beauty of the jewelled. woods caused delay, and 
time was passed in admiration which ought to have been devoted to 
further search. After reaching the mouth of the Greta, many of the 
party pushed up the smaller valley for some distance. The vegeta- 
tion was of a similar character, but the woods were deeper and 
darker. Here was found eoftia nidus-avis, that rare orchis which 
delights in shade, a suspiciously parasite-like plant, already condemned 
as a saprophyte by the learned and Sacra Hooker. The more 
uncommon plants found were, Doronicum plantagineum, Symphytum 
officinale, Lathrea squamaria, Polygonatum multifiorum, Listera ovata, 
Chelidonium majus, and Cardamine amara, Double and monstrous 
forms of Geum rivale were noted, as is usual where this flower is 
abundant. 
The Cryptogamic report of the Section was presented by its 
Secretary, Mr. Matthew B. Slater, F.L.S., who, in conjunction with 
Mr. rnes, worked the ground very fully in the short available 
time, aiid succeeded in adding one species to the known flora of the 
district. The following is a full list of the cryptogams met with :— 
Mosses. 
Gymnostomum tenue Schrad. Hypnum polymorphum Hedw. 
Didymodon sinuosus Wils. , not common, id ta palustre L., in very fine fruit. 
Ditrichum flexicaule Schwg. Hypnum filicinum 
Barbula lrevipila Brid. Amblystegium ecriguti Wils., not 
Barbula papillusa Wils., rare. common. 
Ptychomitrium polyphyllum Dicks. Brachythecium rivulare B. & 
Bartramia ithyphylla Brid. Or sot prckea Se sye var. nudum 
Webera cruda Schreb., rare Di very fine 
Bryum inclinatum Swartz. Ortho bikes fights Brack’ rare. 
m obconicum Hornsch. Orthotrichum lyellii 
Mnium stellare Hedw. Orthotrichum pecan Schrad.;, rare 
Anomodon longifolius Schleich., rare. (new record for the district). 
Rhynchostegium depressum Bruch. 
The Tees valley is classic ground for botanists. It has, however, 
been rambled over by so many good workers that its flora is fairly 
, so S$ 
cursory glance at the plants, more particularly at the smaller 
denizens of vegetation, which comprise the mosses. All the plants 
seen during the ramble have been previously recorded, with the 
exception of the last named. 
rthotrichum obtusiflorum Schrad.—This rare moss is given in. 
Schimper’s Synopsis, 1876, as found on the continent of Europe, 
Naturalist, . 
