438 rliaeo7,oospoi'in.T, Elnchistacea;, Lcptoncma. 



tibus, filamentorum cellulis circiter 15 y. latis, inferiorlbus quasi 

 isodiametricis, superioribus vero diametro 6-8-plo longioribus ; 

 sporangiis nnilocnlaribus ovato-piriformibus, 20-25 « 15-20. 



Hab. ad P 1 y s i p h n i a m e 1 o n g a ta m et P o 1 y s i p h o n i a m 

 nigrescentem in sinu Kiliensi maris Baltici 'Reinke). — Plan- 

 luhi aliitudiiir iiiilliiiielruui vix superans. Sporangia inferne cellu- 

 laiii auxiriarciii (leiiiuiii iii novum sporangium transmutatam) septo 

 iirciiato :i llhiinento vegetativo sepai-antia. 



LEPTONEMA Reinke [188«] in Ber. deutsch hot. Gesellsch. VI, p. IG. 

 Atlas (kMitsclier Meeresalgen I. Heft, pag. 13, Algenfl. westl. 

 (jstsoe p. 50 (Etym. leptos angustus et nenia filum), De Toni Syst. 

 Uebers. Fucoid. 1891, p. 179, Kjelhn. Handbok I, p. 46, Engl.-Prantl 

 Natiirl. Pflanzenfam. 86. Lief. p. 220. — Frons peniciRata, parva. 

 filis e filamentis articulatis horizontaliter extensis exsurgentihus. 

 prope basin ramosis, superne simplicibus, monosiphoniis, fere 

 uhique conformibus, crescentia intercaLari-basipeta (?); phfeophora 

 in unaquaque cellula panca, breve laminteforniia, ambitu irregularia. 

 Sporaugia unilocularia ovata, sessiha aut pedicellata, prope basin 

 liloniin erectorum (assimilantium) lateraliter orta. Sporangia phiri- 

 locularia in regione media et superiori filorum erectorum e traiis- 

 foriiiatione (septis pro axi longitudinaU perpendicularibus) articn- 

 hirum orta. locellis zoogonidia 1-2 continentibus. Paraphyses nulhi3. 



1 Leptonema fasciculatum Reinke in Ber. deutsch. hot. Ges. 1888, 

 p. 10, Atlas (loiitscher Meeresalgen 1. p. K». Algenn. westl. Ostsee 

 ji. 50. — Ca'Spitulis flavescentilms, filis erectis 12-15 y. latis; 

 ceterum generis. 



Hah. ad conchas Mytili et algas majores in mari Baltico 

 occidentali (Reinke); in oceano Atlantico ad oras Angliae. — Distin- 

 gui possunt: Var. uncinatum Reinke Atlas t. 9!, Algenfl. p. 50: cEe- 

 spitiflis 1-3 mm. altis; sporangiis plnrilocularibus terminalibus et 

 in filis erectis dense confertis, apico vorsus nnum alterumve latus 

 filorum versis, filis tunc adparoutiT uiiciiiatim-arcnatis. In mari 

 Baltico occidentali (Reinke). — Var. flagellare Reinke Atlas t. 10- 

 11!, Algenfl. p. 51: filis erectis paucis crespitulose aggregatis, vix 

 altitudine 1 mm. tequantibus, apicc piliformi-attenuatis; sporangiis 

 plurilocularibus in uiodin roginne flloruin singiilis vel laxe gregariis. 

 eornm Ec/ocarjt/ hkii-o ad artiiiiliw lijiiniiii scssililms. siiporiori 

 parte haud zoogoniiliparis, ln m.iri ['.alticn occidontali 'Kkinke;. 



