ASCLEPIADEZ. 333 
In a note accompanying a drawing of this species Mrs. Salvin says, “ flowers like 
delicate work in metal and enamel.” The metallic white of the stigma is preserved in 
the dried specimens. It consists of a thin pellicle, which is easily removed. 
23. Gonolobus pilosus, Benth. Pl. Hartw. p. 289. 
NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 591) ; 
SoutH Mexico, Leon (Hartweg), Zimapan (Coulter, 975). Hb. Kew. 
24. Gonolobus (§ Eugonolobus) pogonanthus, Hemsley, n. sp. 
Herbaceus vel suffruticosus, villosus, caudice tuberiformi, caulibus nanis erectis, foliis oblongis usque 
orbicularibus, cymis subsessilibus, corolla rotata, segmentis intus medio densissime barbatis, 
corona, alte 5-lobata, lobis latis gynostegium paullo superantibus, polliniis fere horizontalibus, 
ovariis glabris. 
Herba vel suffrutex plus minusve villosus, caudice tuberiformi, caulibus crassiusculis, erectis, 4-8- 
pollicaribus, internodiis brevibus. Folia crassiuscula, petiolata, oblonga, ovata vel interdum 
fere orbicularia, cum petiolo 1-2-pollicaria, basi, cuneata, rotundata vel cordiformia, apice ob- 
tusa vel rotundata, venis immersis. Flores 5-6 lineas diametro, in cymas subsessiles pluri- 
floras dispositi; pedicelli 1-3 lineas longi; calyx intus 5-10-glandulosus; segmenta fere libera, 
ovato-oblonga, obtusa, petalis triente breviora, glandulis parvis, seepissime in sinibus geminis ; 
corolla rotata, extus parcissime villosa, segmentis ovato-lanceolatis, obtusis, margine leviter 
incurvis, intus medio densissime et longissime barbatis ; corona fere libera, membranacea, alte 
5-lobata, lobis latis, sursum latioribus, intus inappendiculatis, gynostegium superantibus, apice 
truncatis vel obscure denticulatis; pollinia oblonga, fere horizontalia ; ovaria glabra, stigmate 
supra stamina in rostrum globosum producto. olliculi nobis ignoti. 
Norra Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 586) ; 
Souta Mexico, Chiapas (Ghiesbreght, 670). Hb. Kew. 
25. Gonolobus productus, Torr. Bot. U.S. and Mex. Bound. Surv. p. 165; 
A. Gr. Synop. Fl. N. Am. ii p. 106. 
Texas; ARizona.—NortH Mexico, Cadena (Gregq). 
26. Gonolobus prostratus, R. Br. in Mem. Wern. Soc. i. p. 35. 
Lachnostoma prostratum, Dene. in DC. Prodr. viii. p. 602. 
Cynanchum prostratum, Willd. ; Cav. Ic. 1. t. 7. 
Sour Mexico, San Angel (Bourgeau, 132). Hb. Kew. 
27. Gonolobus (§ Dictyanthus) reflexus, Hemsley, n. sp. 
Fruticosus, ferrugineo-pilosus vel villosus, foliis membranaceis ovato-oblongis acuminatis, cymis 
umbelliformibus 6-12-floris subsessilibus, corolla rotata insigniter reflexa puberula reticulata, 
segmentis oblongis apice rotundatis, corona cyathiformi 10-dentata gynostegium includente, 
tubo stamineo elongato, stigmate vertice depresso. 
Frutex ferrugineo-pilosus vel villosus, ramis teretibus, elongatis, pilis patentibus vestitis. Folia 
membranacea, mollia, breviter petiolata, ovato-oblonga, 3-5-pollicaria, acuminata, strigoso- 
villosa. Flores 8-9 lineas diametro, in cymas umbelliformes subsessiles dispositi ; cymz 6-12- 
floree ; pedicelli graciles, 6-15 lineas longi; calyx parvus, extus ferrugineo-villosus, intus szpe 
5-glandulosus, segmentis lineari-lanceolatis, glandulis minimis; corolla rotata, eleganter 
reticulata, insigniter reflexa, extus puberula vel villosula, intus pulverulenta, tubo brevi, fauce 
puda, segmentis oblongis, apice rotundatis; corona cyathiformis, gynostegium turbinatum 
