144 



bractlets linear, not ciliate, shorter than the calyx; calyx-lobes 

 ovate; capsule ovoid, i' long, glabrous or sparingly pubescent, 

 abruptly short-pointed or blunt; seeds glabrous." 



At the present time the cultures of Hibiscus Moscheutos grown 

 at the New York Botanical Garden include several races which 

 appear to breed true and which are sufficiently distinct to be 

 readily identified. Unless specifically mentioned the characters 

 agree closely with those of the species as described above. The 

 color determinations were made with the aid of Ridgway's 

 Color Standards and Nomenclature. 



Race I. — No red in foliage. Corolla-blades amaranth pink, 

 except for an almost pure white area of a radius of about three 

 eighths of an inch at base surrounding stamen column. Stamens 

 of nearly equal length, those at base of column only slightly 

 shorter. Pollen yellow. Stigmatic lobes broad. Pods blunt. 

 The general character of this race is shown in the colored plate 

 presented in the National Geographic Magazine 39: 597 and 

 which, as it now seems, may be taken as a biological type of 

 the species. 



Race 2. — Like race i, but with darker shade of coloration in 

 petals. 



Race J. — Like race i, but decidedly paler, the color being 

 noticeable but of a very pale diffuse pink. 



Race 4. — Like race i , but with the white of the center extending 

 out along the main veins nearly to the tips of the corolla-lobes 

 in radiating streaks. 



Race 5. — An alba form, nearly pure white; faintest suggestion 

 of pink coloration in buds and occasionally in flowers. Pollen 

 almost white, noticeably less yellow than in races 1-4. 



Race 6. — An eyed form : Tyrian rose at base of petals for radius 

 of about half an inch, the color extending out in veins into the 

 blades which are chiefly a dead white. Pollen white. Con- 

 siderable red pigmentation in stems and in the petioles, and 

 veins of the leaves. 



Race 7. — Red coloration decided in stems and in the petioles 

 and veins of the leaves. Corolla fully colored, amaranth pink 

 at tips of lobes, the color gradually becoming more intense until 



