ECHINOCYSTIS . CUCURBITACEÆ (AUCT. COGNIAUX). 817 
densissime longéque echinato, sæpius biloculari, loculis 1-2-ovulatis ; 
fructu globoso vel subgloboso, aculeis densis robustis fere pungentibus 
horrido, 1-4-spermo; seminibus obovoideis. — Megarrhiza Californica 
Torrey Pacif. Rail. Rep. 6, p. 74 (nomen tantum); Wats. in Proc. 
Amer. Acad. 11, p. 138 (1876); Brew. et Wats. Bot. of Calif. 1, p. 241; 
À. Gray, Germ. of Megarr. in Sillim. Amer. Journ. 1877. 
Radix magna, tuberoso-fusiformis. Caulis annuus, scandens, suc- 
culentus, ramosissimus, angulato-striatus, levissime pubescens pree- 
cipue ad nodos vel subglaber, 2-4 metr. longus. Petiolus gracilis, 
striatus, brevissime pubescens, 4-6 cent. longus. Folia ambitu subor- 
bicularia, supra intense viridia et scabriuscula, subtus lete viridia, 
brevissime villosa demum subseabra, basi satis profunde emarginata, 
6-10 cent. longa et fere totidem lata, lobis late triangularibus, mar- 
gine integerrimis, terminali paulo longiore, acuto mucronatoque, 
lateralibus latioribus, acutis vel obtusis; sinus inter lobos lati, obtusi, 
basilaris subrotundus vel angustissimus, 1-2 cent. profundus. Cirrhi 
robusti, elongatissimi, sparse villosi, sulcati, 3-5-fidi, superiores sæ- 
pius bifidi vel interdum simplices. Flores masculi 5-8-meri, racemosi 
. velinterdum paniculati. Pedunculus communis ssepius robustus, stria- 
tus, brevissime denseque villosus, 10-13 cent. longus, multiflorus ; 
pedicelli subfiliformes, erecto-patuli, breviter villosi, 5-12 mill. longi. 
alycis tubus virescens, subrotatus, sparse villosus, 5-6 mill. latus ; 
dentes brevissimi vel subnulli. Corolla albescens, rotata, utrinque 
sparse villoso-glandulosa, segmentis oblongo-triangularibus, sæpius 
obtusis, 3-nerviis, 4-5 mill. longis, 2-3 mill. latis. Columna staminea 
brevissima, crassa; capitulum antherarum depressum, apice vix pa- 
pillosum, 1*/, mill. erassum. Pedunculus femineus subfiliformis, bre- 
viSsime villosus, 2-3 cent. longus. Ovarium breviter rostratum, 
A mill. crassum ; stylus erassus, 1-2 mill. longus, stigmate depresso, 
2 mill. crasso. Fructus 4-5 cent. longus; aculei 1-2 ‘/, cent. longi. 
Semina pallide fulva, laevia, linea tenui marginiformi circumcincta, 
221), cent. longa, 15 mill. lata, 12 mill. crassa. 
In California (J. Hooker et A. Gray in herb. Kew.; Kellogg et Har- 
2rd n. 294 in herb. Boiss.); prope San Francisco (Bolander in herb. 
DC., Boiss., Lenorm., Flor.); ad Mare Island (Greene in herb. hort. 
Petrop.); ad San Diego (Thurber in herb. Kew.). 
19, E. Marah; foliis leviter sinuato-5-7-lobatis ; staminodiis dis- 
ünetis: ovario ovato-oblongo, molliter echinato, 2-3-loculari, loculis 
l--ovulatis; fructu ovato-oblongo, utrinque leviter attenuato, sparse 
Serres au Prodromus III. 52 
