67 
Description of Plate 231, 
All the plants taken from Drummond’s Southern Mosses, No. 20. 
1. A plant of Aphanorhegma serrata bearing three normal capsules, old, im- 
mersed and empty, with a flaring mouth, broader than the depth of the capsule; the 
Spores measure .024~.027 mm., and are rough and brown. 
1a. Hybrid sporophyte, with exserted seta 6 mm. long, the capsule not splitting 
in the middle, but with a smaller lid, the mouth bordered by two rows of cells and 
an annulus, the spores imperfect, .016-.018 mm. 
2. A plant of Aphanorhegma serrata with one old, flaring, immersed capsule, 
spores .024—.027 mm.; to the left, on a separate branch, two younger capsules, 
immersed and immature. 
3. The lower plant is Aphanorhegma serrata with a single immersed flaring 
capsule, the spores .027-.029 mm. 
3a. Another immersed, flaring capsule with mature spores .o27 mm. in diameter. 
3b. Four other branches, all bearing exserted capsules, less flaring than the 
other two and bordered by only two rows of cells with a distinct annulus, the spores® 
imperfect and massed together in the sporesac. 
3d. was found in place on 3c., but in boiling it fell off. 
cells of the lid are quite different from that of Fig. 6. 
4. A simple, unbranched plant of Aphanorhegxa serrata, showing the shape 
just after dehiscence. 
5. Same, enlarged, showing the 8 rows of thick, collenchymatic cells bordering 
the mouth. 
6. Lid of same, enlarged; also composed of collenchyma. 
7. Spores spinosely roughened, .024—.027 mm. from Fig. 4. 
8. A normal plant of Aphanorhegma serrata with two capsules, one old and 
flaring, the spores .024-.027 mm., the other just splitting in half, with the calyptra 
still on. 
3. On A European Hysprip OF PHYSCOMITRELLA PATENS. 
There has been recorded in Europe another hybrid which 
makes a curious parallel between Aphanorhegma and Physcomitrella, 
and it seems to have puzzled European bryologists, for they do 
not agree in the interpretation of the facts. The synonymy is as 
follows ne 
Puyscomirretta Hamper Limpr. (Rab. Kryptfl. 4: 175. 1886). 
Physcomitrella patens X Physcomitrium sphacricum. 
Physcomutrella patens var. pedicellata Br. & Sch. Br. Eu. 4 37 
(1849). 
Ephemerum patens var. anomalum Hampe in sched. 
Aphanorhegma patens var. anomalum Hpe.; Lindb. in Ofv. K. 
Vet. Akad. Forh. 580 (1864). ae ae 
Physcomitreila patens var. anomala Hpe.; Milde in Bryol. Sil. 
_ I9t (1869). : 
It will be seen that the 
