BOTANY 



HYPNACE.S: (continued) HYPNACEJE (continued) 



Hypnum commutatum, Hedw. Penzance *Hypnum sarmentosum, Wahl. Bodmin, 



cordifolium, Hedw. Chyandour Moor Trungle Moor 



*elodes, Spr. Hayle scorpioides, Linn. Lanivet, Penzance 



exannulatum, Gtimb. Bodmin, Chyan- Sendtneri, Schp. Halgaver Moor, 



dour Moor Bodmin 



var. purpurascens, Dixon. Land's End stellatum, Schreb. Withlel, Treme- 



*falcatum, Brid. Penzance thick Moor 



*imponens, Hedw. He/land stramineum, Dicks. Roscorla, Tren- 



lycopodioides, Schwgr. Hayle Kimbra gwainton 



near Lizard uncinatum, Hedw. Launceston, St. 



ochraceum, Turn. Tolcarne Minver 



palustre, Linn. Withiel, Trengwainton Hylocomium brevirostre, B. & S. Bodmin, 



Patientiae, Ldb. Launceston, Truro Cardinham 



revolvens, Sw. Bodmin, Chyandour Moor loreum, B. & S. Bodmin, Helland 



var. Cossoni, Ren. Penzance 



LIVERWORTS (Hepatic*) 



Although the Cornish list of Hepaticse is not so rich as that of 

 Devonshire, it contains some very rare species not recorded for the 

 latter county. The rarest of these is perhaps Scalia Hookeri, found by Mr. 

 W. Curnow on Chy-an-hal Moor, whence it has since disappeared. This 

 species had previously only been found in the New Forest. It grows 

 intermixed with Aneura multifida and is best recognized by its fleshy 

 rooting base. Petalophyllum Ralfsii (first discovered by Dr. Ralfs) is 

 another, less rare, but by no means common, occurring usually in the 

 damp hollows of sand dunes in company with Pallavicinia Hibernica and 

 Fossombronia angulosa. It was formerly found between Loggans Mill and 

 Treeve, Phillack, and between Hayle Causeway and St. Erth, but the 

 locality was subsequently destroyed. It has since been found on sand 

 flats at Gwithian, and it is hoped that Pallavicinia Hibernica var. Wilson- 

 iana, which was destroyed in the former localities, may again be detected 

 elsewhere. The rare Lejeunia calyptrifolia, formerly found at Trevayler 

 Bottom, has now disappeared. Several species not commonly found 

 fertile occur in that state in Cornwall, of which may be mentioned 

 Plagiochila asplenioides, Lunularia vu/garis, Kantia arguta, Jungermannia 

 inflata, Lepidozia setacea, Antboceros Icevis, A. punctatus, and Mefzgeria 

 furcata. On the other hand some common species appear to be rare, or 

 infertile : Marchantia polymorpha and Reboulia bemispbcerica are rare, and 

 Fegatella cornea has not been noticed in fructification, although the male 

 receptacles have been found occasionally. There is little doubt that care- 

 ful search along the damp rocks near the sea would reveal several more 

 species, especially those of a southern type. Targionia Micbelii should 

 certainly occur, as it is not infrequent around Plymouth Sound. Mr. 

 Holmes also found a spiny Riccia, probably R. ciliifera, Link, on cliffs 

 near Tintagel. It has been identified as R. tumida by Mrs. Tindall, but 

 it is not purplish underneath as in that species. Riccia crystallina is 

 not unlikely to occur on marshes near the sea. Dumortiera irrigua, which 

 occurs in Devon, near Ilfracombe and Torquay, should also be found in 

 Cornwall by streams near the sea. Mr. W. Curnow paid especial 



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