172 



BAEDWICKE'S SCIENCE-GOSSIP. 



northern slopes in places the very conspicuous Bra- 

 chypodium pinnalum. 



In the rougher places among the abundant furze 

 Ulex Europaus (U. nanus does not occur), and on 

 broken declivities and edges of cultivated ground, 

 grow Rosa micrantha, Rosa rubiginosa rarely, Rosa 

 spinosissima and Rosa scpium, the last named very 

 local, Carduus nutans and crispus, Centaurca scabiosa, 

 Inula conyza, Centaurca calcitrapa, C. solstihalis 

 (locally), Echium vulgare (especially near the sea), 

 Onobrychis saliva, Hyoscyamus niger, Cynoglossum 

 officinale, Verbena officinalis, Galeopsis tctrahit, Chlora 

 perfoliata, the very local Sescli libanotis, Hypericum 

 hirsutum, Conium tnaculatum, Senecio erucifolius, 

 Lactuca muralis, Campanula trachelium, Marrubium 

 vulgare, etc., Junipcrus communis, so common in 

 West Sussex, is extremely rare here, and only grows 

 to the height of a few inches. 



The cultivated tracts produce, besides the 

 usual plants of such districts, some interesting 

 species, among which may be mentioned 

 Papaver argcmone and hybridum, Lithosper- 

 tnum arvense, Galium tricorne, Linaria elatine, 

 spuria, and minor. 



The wooded parts are chiefly composed of 

 beech and ash, oak only occasionally occurs. 

 The undergrowth contains Viburnum lantana, 

 and more rarely Rhamnus catharticus ; Pyrus 

 aria is rare. These woods are rich in orchids. 

 The following species grow rather commonly 

 — Listcra ovata, Cephalanthera grandiflora, 

 Orchis maculata, Oplirys muscifera, Habenaria 

 chlorantha, and Ncottia Nidus-avis, while 

 Herminium monorchis, Cephalanthera ensifolia, 

 and Aceras anthropophora are rare. Viola 

 hirla is common, and Viola pcrmixta, re- 

 sembling in some respects both hirta and 

 odorata, is frequently found. Geranium pra- 

 lense and columbinum occur in a few re- 

 stricted localities, as well as Daphne mezereum. 

 About seventeen species of Orchidacea are 

 recorded from the chalk of East Sussex. 



Of the species mentioned by Mr. Lamb, 

 the following I have never seen on the chalk 

 of East Sussex, viz. Hclleborus fcctidus, Pa- 

 paver somnifcrum, Afalva moschata (common 

 in the Weald), Atropa belladonna, Verbascum 

 Lychnitis, Ajuga chama'pitys, Buxus semper- 

 ■virens, Orchis militaris and fitsca, and Ep't- 

 pactis latifolia (a wealden plant), while Iris 

 fcetidissima is very rare, and Taxus baccata 

 invariably planted. Ophrys arachnites, Orchis hircina 

 and O. simia, which have been met with on the chalk 

 in Kent, are quite unknown in Sussex, and we miss 

 entirely Astragalus hypoglottis, Thalictrum saxatile, 

 and Anemone Pulsatilla, which are characteristic of 

 the chalk of Cambridgeshire. 



J. H. A. Jenner. 



4 East Street, Zewes. 



ON VARIOUS ROTIFERS {ASPLANCHNA 

 MYRMELEO). 



By C. Rousselet. 



I HAD the good fortune a few days ago to find 

 this fine and very rare Rotiferon, which has not 

 yet been properly figured nor described, and only 

 recorded once in England. 



Dr. Hudson, in a footnote on page 123, vol. i. of 

 his recent work on the Rotifera, says: "His 

 (Ehrenberg's) A r otommata myrmeleo is unknown in 

 England, but Leydig has made it clear that in this 

 instance Ehrenberg has made a mistake, and that 

 the Rotiferon has not got the cloaca which Ehrenberg 

 describes. It is therefore an Asplanchna with a foot ; 

 one much resembling that of A T otops clavulatus. Its 

 jaws, ovary, vascular system and eye resemble those 

 of A. BrightwellU:* 



Fig. 74. — Asptaitchna myrmeleo. Female X 75. 



And in Addenda to the same work, Mr. P. H. 

 Gosse remarks of Asplanchna myrmeleo : This inter- 

 esting species is no longer an alien. Mr. Hood has 

 lately sent me from Dundee, living and healthy 

 examples. They seemed to possess no contractile 

 vesicles." 



No figure is given, and Pritchard's illustration of 

 this species, which he evidently copied from some 



