16 



to spacing out, packing, aeration and temperature. Much 



information has been gained by practical experience, but further 



knowledge is required, so that any failure causing loss of produce 



may be attributed to its precise cause, and, if possible, prevented 

 for the future. 



ma 



point in connection with the cold storage of vegetables and fruit, 

 namely, the cost of the refrigerating plant and the running ex- 

 penses. For although it may be quite possible to keepa chamber at 

 a desired temperature when filled with vegetables or fruit, yet the 

 outlay involved in connection with the packing and unpacking 



m 



mav 



as to render the undertaking impossible from the commercial 

 point of view. 



IV.— DIAGNOSES AFRICANAE : LVI. 



1471. Diplotaxis inopinata, S])Tague [Cruciferae-Brassiceae] ; 



affinis D. eriicoidi, DC et D, griqnensiy Sprague; ab ilia floribus 

 minoribus, siliqua juventute pilosa, ab hac inflorescentia longiore 

 rhachi cauleque minus hispidis pilis omnibus retrorsis, siliquis 

 tandem glabris differt. 



Herha erecta, annua, circiter 30 cm. alta, radice ± verticali 

 pauciramoso. Caulis retrorse hispidulus, superne pauciramosus 

 ramis brevibus ascendentibus. Folia radicalia lyrata lobo ter- 

 minali elliptico lateralibus utrinque 3-4 triangulari-ovatis vel 

 oblongis, utrinque praecipue subtus densiuscule subadpresse 

 pilosa, 4r-b cm. longa, 1*5-2 cm. lata; petioli usque ad 2 cm. 

 longi. Folia cauUna lobis lateralibus unijugatis vel bijugatis 

 lobo terminal! pro rata magno oblongo-elliptico, superiora lobo 

 terminali subtriangulari acuto. Racemi sub fructu usque ad 

 25 cm, longi. Flores 2-3 in anthesi in eodem tempore, in toto 

 vix 5 mm. longi; pedicelli 2-2'5 mm. longi, glabri (vel apice 

 tantum pilis paucis retrorsis). Sepala erecta, aequilonga, 

 3-5 mm. longa, extra longiuscule crispule pilosa, apice hyalina, 

 anterius et posterius oblongo-linearia, 0-7-0-8 mm. lata, 

 lateralia lanceolata-oblonga, 1 mm. lata. Petala erecta, limbo 

 ascendente, spathulata, 4-5 mm, longa, 1-2 mm. lata, limbo 

 obovoideo 2'5 mm. longo in unguem angustato pinnatim venoso 

 venis utrinque 3-4. Filamenta lateralia 2-5 mm., anteriora et 

 posteriora 3 mm, longa; antherae 0-8-0-9 mm. longae, sagittatae. 

 Glandulae laterales bilobae, 0-3 mm. latae, anterior et posterior 

 minimae. Ovarium tetragonum, 2*7 mm. longum, 0-5 mm. 

 crasstim; stylus crassus, vix 0*5 mm. longus; stigma integrum, 

 apice cavo minuto centrali. Siliquae 2-3-5 cm. longae, glabrae, 



stylo baud 1 mm. longo stigmate subintegro coronato; septum 



hp mm. latum; valvae valde unicostatae, post dehiscentiaxn 

 explanatae, 2-5-3 mm. latae. Semina plane regulariter biseriata, 

 oblongo-ellipsoldea; cotyledones obdeltoidei, lateribus convexis, 

 truncati, vix 1 mm. longi, ultra 1 mm, lati ; radicula ultra 1 mm. 

 longa. 



