673 



Ordo LXXXHI. LYTHRARIEAE Juss. 



(DC. Prodr. III. 75. — Wlprs. Repert. bot. syst. II. 101. et 916. — Endl. Gener. 

 plant. p. 1198. — Meisn. Gener. plant. vascul. I. 117. II. 83.) 



Tribus I. EULYTHRARIEAE Endl. 1. c. 

 Semina aptera. 



6145/,. qiARTIMl Endl. 

 (Endl. Gener. planl. Suppl. II. p. 94. — Meisn. Gener. plant. vascul. II. 355. — 

 Rhyacophila Hochslelt. Gener. plant. nov. Afric. 3.) 

 1. QU. (RHYACOPHILA Hochslett. 1. c.) REPENS Endl. 1. c. — Planta aquatica hu- 

 milis glabra: caule ramoso repenle, foliis simplicibus capillaceis dense teclo; 

 rami floriferi ascendentes vel erecti digitales, inferiore parte densissime foliosi in 

 racemum nudum 2-3-pollicarem abeuntes; pedicelli in racemo allerni vel rarius 

 subverticillati palentes 1-1 '/» lin. longi; flores parvuli tribracteati ; calyx corol- 

 linus campanulatus tenuissimus, bracleas vix excedens; capsula glabra uti omnes 

 plantae partes, V/t lin. longa, valvis apice dehiscentibus. 2{.? — Crescit in Abys- 

 sinia in rivulo super lapides in dislriclu Sanna prope Docheli. 



6l46/ t . MIDDF/VDORFIA Trautv. 

 (Trautv. Dissert. de Middendorfia p. 3. t. 1.) 

 Flores hermapbroditi subapetali, minute bibracteolati. Perianthium 

 campanulatum 12-nervium, limbus 12-dentatus, dentes 6 latiores erecti, 6 

 angustiores patentes. Corolla perianthii fauci inserta hexapetala vel incom- 

 pleta vel nulla, petala perianthii dentibus angustioribus opposita obovato- 

 orbiculata exunguiculata. Stamina 6, perianthii basi inserta ejusque denti- 

 bus latioribus opposita, fllamenta subulata, perianthio breviora, conniven- 

 tia, anthcrae biloculares, rima dehiscentes. Ovarium sessile biloculare 

 multiovulatum, stylus longiusculus terminalis persistens, stigma globosum 

 crassum. Capsula bilocularis membranacea, apice dentibus 4 dehiscens 

 polysperma, dissepimentum medio placentiferum, placenta cylindrica crassa. 

 Semina aptera obovata, uno latere convexa, altero plana, laevia minuta. — 

 Herbae annuae glabriusculae: foliis sparsis oppositisque simplicibus integris 

 atque intcgerrimis; floribus axillaribus sessilibus. 



1. M. RORYSTHENICA Trautv. 1. c. 4. t. 1. — Perianthii dentibus angustioribus 

 rectis (nec arcuatis) patulis; corolla subnulla. © — Herba annua glabriuscula, 

 nunc erecliuscula simplexque, nunc saepius longe lateque prostrata ramosissima, 

 ramis basi radicantibus. Caulis ramique tereliusculi, apice obsolele puberuli, 

 saepius purpurascentes. Foliorum in caule ramisque par infimum oppositum, 

 reliqua folia sparsa, omnia aulem obovato-oblonga, apice obtusiuscula vel acu- 

 tiuscula, margine integra et integerrima, basin versus angustala sessilia uninervia, 

 ulrinque concoloria. Flores in axillis foliorum omnium sessiles solitarii parvi, 

 foliis multoties breviores, basi bibracteolati. Rracteolae subulalae, perianthio 

 demum iriplo quadruplove breviores. Perianthii denles abbreviati, 6 latiores 

 ovati erecli, 6 angusliores patuh recti (haud arcuati). Pelala saepius nulla, rarius 

 observalur petalum solitarium obovato-orbiculatum exunguiculatum, inter peri- 

 anthii dentes latiores insertum iisque duplo longius, purpureum. Anlherae luteo- 

 V. 85 



